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overweight 2019-09-30 11:11:23 -04:00
commit 4bc1354d6c
9 changed files with 914 additions and 0 deletions
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28
CVE-2018-6951.patch Normal file
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@ -0,0 +1,28 @@
From f290f48a621867084884bfff87f8093c15195e6a Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruen@gnu.org>
Date: Mon, 12 Feb 2018 16:48:24 +0100
Subject: Fix segfault with mangled rename patch
http://savannah.gnu.org/bugs/?53132
* src/pch.c (intuit_diff_type): Ensure that two filenames are specified
for renames and copies (fix the existing check).
---
src/pch.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/pch.c b/src/pch.c
index ff9ed2c..bc6278c 100644
--- a/src/pch.c
+++ b/src/pch.c
@@ -974,7 +974,8 @@ intuit_diff_type (bool need_header, mode_t *p_file_type)
if ((pch_rename () || pch_copy ())
&& ! inname
&& ! ((i == OLD || i == NEW) &&
- p_name[! reverse] &&
+ p_name[reverse] && p_name[! reverse] &&
+ name_is_valid (p_name[reverse]) &&
name_is_valid (p_name[! reverse])))
{
say ("Cannot %s file without two valid file names\n", pch_rename () ? "rename" : "copy");
--
cgit v1.0-41-gc330

103
Don-t-leak-temporary-file-on-failed-ed-style-patch.patch Normal file
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@ -0,0 +1,103 @@
From 19599883ffb6a450d2884f081f8ecf68edbed7ee Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Thu, 3 May 2018 14:31:55 +0200
Subject: [PATCH 14/17] Don't leak temporary file on failed ed-style patch
Now that we write ed-style patches to a temporary file before we
apply them, we need to ensure that the temporary file is removed
before we leave, even on fatal error.
* src/pch.c (do_ed_script): Use global TMPEDNAME instead of local
tmpname. Don't unlink the file directly, instead tag it for removal
at exit time.
* src/patch.c (cleanup): Unlink TMPEDNAME at exit.
This closes bug #53820:
https://savannah.gnu.org/bugs/index.php?53820
Fixes: 123eaff0d5d1 ("Fix arbitrary command execution in ed-style patches (CVE-2018-1000156)")
---
src/common.h | 2 ++
src/patch.c | 1 +
src/pch.c | 11 +++++------
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/src/common.h b/src/common.h
index 904a3f8..53c5e32 100644
--- a/src/common.h
+++ b/src/common.h
@@ -94,10 +94,12 @@ XTERN char const *origsuff;
XTERN char const * TMPINNAME;
XTERN char const * TMPOUTNAME;
XTERN char const * TMPPATNAME;
+XTERN char const * TMPEDNAME;
XTERN bool TMPINNAME_needs_removal;
XTERN bool TMPOUTNAME_needs_removal;
XTERN bool TMPPATNAME_needs_removal;
+XTERN bool TMPEDNAME_needs_removal;
#ifdef DEBUGGING
XTERN int debug;
diff --git a/src/patch.c b/src/patch.c
index 3fcaec5..9146597 100644
--- a/src/patch.c
+++ b/src/patch.c
@@ -1999,6 +1999,7 @@ cleanup (void)
remove_if_needed (TMPINNAME, &TMPINNAME_needs_removal);
remove_if_needed (TMPOUTNAME, &TMPOUTNAME_needs_removal);
remove_if_needed (TMPPATNAME, &TMPPATNAME_needs_removal);
+ remove_if_needed (TMPEDNAME, &TMPEDNAME_needs_removal);
remove_if_needed (TMPREJNAME, &TMPREJNAME_needs_removal);
output_files (NULL);
}
diff --git a/src/pch.c b/src/pch.c
index 79a3c99..1bb3153 100644
--- a/src/pch.c
+++ b/src/pch.c
@@ -2403,7 +2403,6 @@ do_ed_script (char const *inname, char c
file_offset beginning_of_this_line;
size_t chars_read;
FILE *tmpfp = 0;
- char const *tmpname;
int tmpfd = -1;
pid_t pid;
@@ -2415,12 +2414,13 @@ do_ed_script (char const *inname, char c
invalid commands and treats the next line as a new command, which
can lead to arbitrary command execution. */
- tmpfd = make_tempfile (&tmpname, 'e', NULL, O_RDWR | O_BINARY, 0);
+ tmpfd = make_tempfile (&TMPEDNAME, 'e', NULL, O_RDWR | O_BINARY, 0);
if (tmpfd == -1)
- pfatal ("Can't create temporary file %s", quotearg (tmpname));
+ pfatal ("Can't create temporary file %s", quotearg (TMPEDNAME));
+ TMPEDNAME_needs_removal = true;
tmpfp = fdopen (tmpfd, "w+b");
if (! tmpfp)
- pfatal ("Can't open stream for file %s", quotearg (tmpname));
+ pfatal ("Can't open stream for file %s", quotearg (TMPEDNAME));
}
for (;;) {
@@ -2461,7 +2461,7 @@ do_ed_script (char const *inname, char c
write_fatal ();
if (lseek (tmpfd, 0, SEEK_SET) == -1)
- pfatal ("Can't rewind to the beginning of file %s", quotearg (tmpname));
+ pfatal ("Can't rewind to the beginning of file %s", quotearg (TMPEDNAME));
if (! dry_run && ! skip_rest_of_patch) {
int exclusive = *outname_needs_removal ? 0 : O_EXCL;
@@ -2496,8 +2496,6 @@ do_ed_script (char const *inname, char c
}
fclose (tmpfp);
- unlink (tmpname);
- free((char*) tmpname);
if (ofp)
{
--
2.19.1

78
Don-t-leak-temporary-file-on-failed-multi-file-ed-st.patch Normal file
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@ -0,0 +1,78 @@
From 369dcccdfa6336e5a873d6d63705cfbe04c55727 Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Mon, 7 May 2018 15:14:45 +0200
Subject: [PATCH 15/17] Don't leak temporary file on failed multi-file ed-style
patch
The previous fix worked fine with single-file ed-style patches, but
would still leak temporary files in the case of multi-file ed-style
patch. Fix that case as well, and extend the test case to check for
it.
* src/patch.c (main): Unlink TMPEDNAME if needed before moving to
the next file in a patch.
This closes bug #53820:
https://savannah.gnu.org/bugs/index.php?53820
Fixes: 123eaff0d5d1 ("Fix arbitrary command execution in ed-style patches (CVE-2018-1000156)")
Fixes: 19599883ffb6 ("Don't leak temporary file on failed ed-style patch")
---
src/patch.c | 1 +
tests/ed-style | 31 +++++++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/src/patch.c b/src/patch.c
index 9146597..81c7a02 100644
--- a/src/patch.c
+++ b/src/patch.c
@@ -236,6 +236,7 @@ main (int argc, char **argv)
}
remove_if_needed (TMPOUTNAME, &TMPOUTNAME_needs_removal);
}
+ remove_if_needed (TMPEDNAME, &TMPEDNAME_needs_removal);
if (! skip_rest_of_patch && ! file_type)
{
diff --git a/tests/ed-style b/tests/ed-style
index 6b6ef9d..504e6e5 100644
--- a/tests/ed-style
+++ b/tests/ed-style
@@ -38,3 +38,34 @@ EOF
check 'cat foo' <<EOF
foo
EOF
+
+# Test the case where one ed-style patch modifies several files
+
+cat > ed3.diff <<EOF
+--- foo
++++ foo
+1c
+bar
+.
+--- baz
++++ baz
+0a
+baz
+.
+EOF
+
+# Apparently we can't create a file with such a patch, while it works fine
+# when the file name is provided on the command line
+cat > baz <<EOF
+EOF
+
+check 'patch -e -i ed3.diff' <<EOF
+EOF
+
+check 'cat foo' <<EOF
+bar
+EOF
+
+check 'cat baz' <<EOF
+baz
+EOF
--
2.19.1

81
Fix-check-of-return-value-of-fwrite.patch Normal file
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@ -0,0 +1,81 @@
From 1e9104c18019e7dc6b5590aea4b1d4f9d8ecfd56 Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sat, 7 Apr 2018 12:21:04 +0200
Subject: [PATCH 11/17] Fix check of return value of fwrite().
* src/patch.c (copy_till): Consider incomplete fwrite() write as an error.
* src/pch.c (pch_write_line, do_ed_script): Likewise.
---
src/patch.c | 4 ++--
src/pch.c | 14 +++++++++-----
2 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/src/patch.c b/src/patch.c
index 1ae91d9..3fcaec5 100644
--- a/src/patch.c
+++ b/src/patch.c
@@ -2,7 +2,7 @@
/* Copyright (C) 1984, 1985, 1986, 1987, 1988 Larry Wall
- Copyright (C) 1989-1993, 1997-1999, 2002-2003, 2006, 2009-2012 Free Software
+ Copyright (C) 1989-1993, 1997-1999, 2002-2003, 2006, 2009-2018 Free Software
Foundation, Inc.
This program is free software: you can redistribute it and/or modify
@@ -1641,7 +1641,7 @@ copy_till (struct outstate *outstate, lin lastline)
if (size)
{
if ((! outstate->after_newline && putc ('\n', fp) == EOF)
- || ! fwrite (s, sizeof *s, size, fp))
+ || fwrite (s, sizeof *s, size, fp) < size)
write_fatal ();
outstate->after_newline = s[size - 1] == '\n';
outstate->zero_output = false;
diff --git a/src/pch.c b/src/pch.c
index cda3dfa..79a3c99 100644
--- a/src/pch.c
+++ b/src/pch.c
@@ -2279,8 +2279,11 @@ pfetch (lin line)
bool
pch_write_line (lin line, FILE *file)
{
- bool after_newline = (p_len[line] > 0) && (p_line[line][p_len[line] - 1] == '\n');
- if (! fwrite (p_line[line], sizeof (*p_line[line]), p_len[line], file))
+ bool after_newline =
+ (p_len[line] > 0) && (p_line[line][p_len[line] - 1] == '\n');
+
+ if (fwrite (p_line[line], sizeof (*p_line[line]), p_len[line], file)
+ < p_len[line])
write_fatal ();
return after_newline;
}
@@ -2427,13 +2430,14 @@ do_ed_script (char const *inname, char const *outname,
ed_command_letter = get_ed_command_letter (buf);
if (ed_command_letter) {
if (tmpfp)
- if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
+ if (fwrite (buf, sizeof *buf, chars_read, tmpfp) < chars_read)
write_fatal ();
if (ed_command_letter != 'd' && ed_command_letter != 's') {
p_pass_comments_through = true;
while ((chars_read = get_line ()) != 0) {
if (tmpfp)
- if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
+ if (fwrite (buf, sizeof *buf, chars_read, tmpfp)
+ < chars_read)
write_fatal ();
if (chars_read == 2 && strEQ (buf, ".\n"))
break;
@@ -2448,7 +2452,7 @@ do_ed_script (char const *inname, char const *outname,
}
if (!tmpfp)
return;
- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0
+ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) < (size_t) 4
|| fflush (tmpfp) != 0)
write_fatal ();
--
2.19.1

30
Fix-swapping-fake-lines-in-pch_swap.patch Normal file
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@ -0,0 +1,30 @@
From 9c986353e420ead6e706262bf204d6e03322c300 Mon Sep 17 00:00:00 2001
From: Andreas Gruenbacher <agruen@gnu.org>
Date: Fri, 17 Aug 2018 13:35:40 +0200
Subject: [PATCH 17/17] Fix swapping fake lines in pch_swap
* src/pch.c (pch_swap): Fix swapping p_bfake and p_efake when there is a
blank line in the middle of a context-diff hunk: that empty line stays
in the middle of the hunk and isn't swapped.
Fixes: https://savannah.gnu.org/bugs/index.php?53133
---
src/pch.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/pch.c b/src/pch.c
index e92bc64..a500ad9 100644
--- a/src/pch.c
+++ b/src/pch.c
@@ -2122,7 +2122,7 @@ pch_swap (void)
}
if (p_efake >= 0) { /* fix non-freeable ptr range */
if (p_efake <= i)
- n = p_end - i + 1;
+ n = p_end - p_ptrn_lines;
else
n = -i;
p_efake += n;
--
2.19.1

BIN
patch-2.7.6.tar.xz Normal file
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209
patch-CVE-2018-1000156.patch Normal file
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@ -0,0 +1,209 @@
diff -up patch-2.7.6/src/pch.c.CVE-2018-1000156 patch-2.7.6/src/pch.c
--- patch-2.7.6/src/pch.c.CVE-2018-1000156 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/pch.c 2018-05-03 12:50:43.374036905 +0100
@@ -33,6 +33,7 @@
# include <io.h>
#endif
#include <safe.h>
+#include <sys/wait.h>
#define INITHUNKMAX 125 /* initial dynamic allocation size */
@@ -2388,22 +2389,28 @@ do_ed_script (char const *inname, char c
static char const editor_program[] = EDITOR_PROGRAM;
file_offset beginning_of_this_line;
- FILE *pipefp = 0;
size_t chars_read;
+ FILE *tmpfp = 0;
+ char const *tmpname;
+ int tmpfd = -1;
+ pid_t pid;
+
+ if (! dry_run && ! skip_rest_of_patch)
+ {
+ /* Write ed script to a temporary file. This causes ed to abort on
+ invalid commands such as when line numbers or ranges exceed the
+ number of available lines. When ed reads from a pipe, it rejects
+ invalid commands and treats the next line as a new command, which
+ can lead to arbitrary command execution. */
+
+ tmpfd = make_tempfile (&tmpname, 'e', NULL, O_RDWR | O_BINARY, 0);
+ if (tmpfd == -1)
+ pfatal ("Can't create temporary file %s", quotearg (tmpname));
+ tmpfp = fdopen (tmpfd, "w+b");
+ if (! tmpfp)
+ pfatal ("Can't open stream for file %s", quotearg (tmpname));
+ }
- if (! dry_run && ! skip_rest_of_patch) {
- int exclusive = *outname_needs_removal ? 0 : O_EXCL;
- assert (! inerrno);
- *outname_needs_removal = true;
- copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
- sprintf (buf, "%s %s%s", editor_program,
- verbosity == VERBOSE ? "" : "- ",
- outname);
- fflush (stdout);
- pipefp = popen(buf, binary_transput ? "wb" : "w");
- if (!pipefp)
- pfatal ("Can't open pipe to %s", quotearg (buf));
- }
for (;;) {
char ed_command_letter;
beginning_of_this_line = file_tell (pfp);
@@ -2414,14 +2421,14 @@ do_ed_script (char const *inname, char c
}
ed_command_letter = get_ed_command_letter (buf);
if (ed_command_letter) {
- if (pipefp)
- if (! fwrite (buf, sizeof *buf, chars_read, pipefp))
+ if (tmpfp)
+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
write_fatal ();
if (ed_command_letter != 'd' && ed_command_letter != 's') {
p_pass_comments_through = true;
while ((chars_read = get_line ()) != 0) {
- if (pipefp)
- if (! fwrite (buf, sizeof *buf, chars_read, pipefp))
+ if (tmpfp)
+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
write_fatal ();
if (chars_read == 2 && strEQ (buf, ".\n"))
break;
@@ -2434,13 +2441,50 @@ do_ed_script (char const *inname, char c
break;
}
}
- if (!pipefp)
+ if (!tmpfp)
return;
- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, pipefp) == 0
- || fflush (pipefp) != 0)
+ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0
+ || fflush (tmpfp) != 0)
write_fatal ();
- if (pclose (pipefp) != 0)
- fatal ("%s FAILED", editor_program);
+
+ if (lseek (tmpfd, 0, SEEK_SET) == -1)
+ pfatal ("Can't rewind to the beginning of file %s", quotearg (tmpname));
+
+ if (! dry_run && ! skip_rest_of_patch) {
+ int exclusive = *outname_needs_removal ? 0 : O_EXCL;
+ *outname_needs_removal = true;
+ if (inerrno != ENOENT)
+ {
+ *outname_needs_removal = true;
+ copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
+ }
+ sprintf (buf, "%s %s%s", editor_program,
+ verbosity == VERBOSE ? "" : "- ",
+ outname);
+ fflush (stdout);
+
+ pid = fork();
+ if (pid == -1)
+ pfatal ("Can't fork");
+ else if (pid == 0)
+ {
+ dup2 (tmpfd, 0);
+ execl ("/bin/sh", "sh", "-c", buf, (char *) 0);
+ _exit (2);
+ }
+ else
+ {
+ int wstatus;
+ if (waitpid (pid, &wstatus, 0) == -1
+ || ! WIFEXITED (wstatus)
+ || WEXITSTATUS (wstatus) != 0)
+ fatal ("%s FAILED", editor_program);
+ }
+ }
+
+ fclose (tmpfp);
+ unlink (tmpname);
+ free((char*) tmpname);
if (ofp)
{
diff -up patch-2.7.6/tests/ed-style.CVE-2018-1000156 patch-2.7.6/tests/ed-style
--- patch-2.7.6/tests/ed-style.CVE-2018-1000156 2018-05-03 12:50:28.988937938 +0100
+++ patch-2.7.6/tests/ed-style 2018-05-03 12:51:35.841397873 +0100
@@ -0,0 +1,40 @@
+# Copyright (C) 2018 Free Software Foundation, Inc.
+#
+# Copying and distribution of this file, with or without modification,
+# in any medium, are permitted without royalty provided the copyright
+# notice and this notice are preserved.
+
+. $srcdir/test-lib.sh
+
+require_cat
+use_local_patch
+use_tmpdir
+
+# ==============================================================
+
+cat > ed1.diff <<EOF
+0a
+foo
+.
+EOF
+
+check 'patch -e foo -i ed1.diff' <<EOF
+EOF
+
+check 'cat foo' <<EOF
+foo
+EOF
+
+cat > ed2.diff <<EOF
+1337a
+r !echo bar
+,p
+EOF
+
+check 'patch -e foo -i ed2.diff > /dev/null 2> /dev/null || echo "Status: $?"' <<EOF
+Status: 2
+EOF
+
+check 'cat foo' <<EOF
+foo
+EOF
diff -up patch-2.7.6/tests/Makefile.am.CVE-2018-1000156 patch-2.7.6/tests/Makefile.am
--- patch-2.7.6/tests/Makefile.am.CVE-2018-1000156 2018-05-03 12:50:28.988937938 +0100
+++ patch-2.7.6/tests/Makefile.am 2018-05-03 12:50:57.340132989 +0100
@@ -32,6 +32,7 @@ TESTS = \
crlf-handling \
dash-o-append \
deep-directories \
+ ed-style \
empty-files \
false-match \
fifo \
diff -up patch-2.7.6/tests/Makefile.in.CVE-2018-1000156 patch-2.7.6/tests/Makefile.in
--- patch-2.7.6/tests/Makefile.in.CVE-2018-1000156 2018-05-03 12:50:28.989937944 +0100
+++ patch-2.7.6/tests/Makefile.in 2018-05-03 12:51:25.974329992 +0100
@@ -1308,6 +1308,7 @@ TESTS = \
crlf-handling \
dash-o-append \
deep-directories \
+ ed-style \
empty-files \
false-match \
fifo \
@@ -1645,6 +1646,13 @@ empty-files.log: empty-files
$(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
--log-file $$b.log --trs-file $$b.trs \
$(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
+ "$$tst" $(AM_TESTS_FD_REDIRECT)
+ed-style.log: empty-files
+ @p='ed-style'; \
+ b='ed-style'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
"$$tst" $(AM_TESTS_FD_REDIRECT)
false-match.log: false-match
@p='false-match'; \

326
patch-selinux.patch Normal file
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@ -0,0 +1,326 @@
diff -up patch-2.7.6/src/common.h.selinux patch-2.7.6/src/common.h
--- patch-2.7.6/src/common.h.selinux 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/common.h 2018-02-12 12:29:44.415225377 +0000
@@ -30,6 +30,8 @@
#include <sys/types.h>
#include <time.h>
+#include <selinux/selinux.h>
+
#include <sys/stat.h>
#include <limits.h>
@@ -84,6 +86,7 @@ XTERN char *outfile;
XTERN int inerrno;
XTERN int invc;
XTERN struct stat instat;
+XTERN security_context_t incontext;
XTERN bool dry_run;
XTERN bool posixly_correct;
diff -up patch-2.7.6/src/inp.c.selinux patch-2.7.6/src/inp.c
--- patch-2.7.6/src/inp.c.selinux 2017-09-04 12:34:16.000000000 +0100
+++ patch-2.7.6/src/inp.c 2018-02-12 12:29:44.415225377 +0000
@@ -145,7 +145,7 @@ get_input_file (char const *filename, ch
char *getbuf;
if (inerrno == -1)
- inerrno = stat_file (filename, &instat);
+ inerrno = stat_file (filename, &instat, &incontext);
/* Perhaps look for RCS or SCCS versions. */
if (S_ISREG (file_type)
@@ -190,7 +190,7 @@ get_input_file (char const *filename, ch
}
if (cs && version_get (filename, cs, ! inerrno, elsewhere, getbuf,
- &instat))
+ &instat, &incontext))
inerrno = 0;
free (getbuf);
@@ -201,6 +201,7 @@ get_input_file (char const *filename, ch
{
instat.st_mode = S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH;
instat.st_size = 0;
+ incontext = NULL;
}
else if (! ((S_ISREG (file_type) || S_ISLNK (file_type))
&& (file_type & S_IFMT) == (instat.st_mode & S_IFMT)))
diff -up patch-2.7.6/src/Makefile.am.selinux patch-2.7.6/src/Makefile.am
--- patch-2.7.6/src/Makefile.am.selinux 2017-09-04 12:34:16.000000000 +0100
+++ patch-2.7.6/src/Makefile.am 2018-02-12 12:29:44.415225377 +0000
@@ -37,7 +37,7 @@ patch_SOURCES = \
AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib
patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \
- $(LIB_XATTR) $(LIB_EACCESS)
+ $(LIB_XATTR) $(LIB_EACCESS) -lselinux
if ENABLE_MERGE
patch_SOURCES += merge.c
diff -up patch-2.7.6/src/Makefile.in.selinux patch-2.7.6/src/Makefile.in
--- patch-2.7.6/src/Makefile.in.selinux 2018-02-03 13:33:56.000000000 +0000
+++ patch-2.7.6/src/Makefile.in 2018-02-12 12:29:44.415225377 +0000
@@ -1147,7 +1147,7 @@ patch_SOURCES = bestmatch.h common.h inp
AM_CPPFLAGS = -I$(top_builddir)/lib -I$(top_srcdir)/lib \
$(am__append_2)
patch_LDADD = $(LDADD) $(top_builddir)/lib/libpatch.a $(LIB_CLOCK_GETTIME) \
- $(LIB_XATTR) $(LIB_EACCESS)
+ $(LIB_XATTR) $(LIB_EACCESS) -lselinux
all: all-am
diff -up patch-2.7.6/src/patch.c.selinux patch-2.7.6/src/patch.c
--- patch-2.7.6/src/patch.c.selinux 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/patch.c 2018-02-12 12:30:27.315164138 +0000
@@ -269,19 +269,19 @@ main (int argc, char **argv)
if (! strcmp (inname, outname))
{
if (inerrno == -1)
- inerrno = stat_file (inname, &instat);
+ inerrno = stat_file (inname, &instat, NULL);
outstat = instat;
outerrno = inerrno;
}
else
- outerrno = stat_file (outname, &outstat);
+ outerrno = stat_file (outname, &outstat, NULL);
if (! outerrno)
{
if (has_queued_output (&outstat))
{
output_files (&outstat);
- outerrno = stat_file (outname, &outstat);
+ outerrno = stat_file (outname, &outstat, NULL);
inerrno = -1;
}
if (! outerrno)
@@ -598,7 +598,7 @@ main (int argc, char **argv)
}
else
{
- attr |= FA_IDS | FA_MODE | FA_XATTRS;
+ attr |= FA_IDS | FA_MODE | FA_XATTRS | FA_SECCONTEXT;
set_file_attributes (TMPOUTNAME, attr, inname, &instat,
mode, &new_time);
}
@@ -658,7 +658,7 @@ main (int argc, char **argv)
struct stat oldst;
int olderrno;
- olderrno = stat_file (rej, &oldst);
+ olderrno = stat_file (rej, &oldst, NULL);
if (olderrno && olderrno != ENOENT)
write_fatal ();
if (! olderrno && lookup_file_id (&oldst) == CREATED)
@@ -1790,7 +1790,7 @@ delete_file_later (const char *name, con
if (! st)
{
- if (stat_file (name, &st_tmp) != 0)
+ if (stat_file (name, &st_tmp, NULL) != 0)
pfatal ("Can't get file attributes of %s %s", "file", name);
st = &st_tmp;
}
diff -up patch-2.7.6/src/pch.c.selinux patch-2.7.6/src/pch.c
--- patch-2.7.6/src/pch.c.selinux 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/pch.c 2018-02-12 12:29:44.416225375 +0000
@@ -1,6 +1,6 @@
/* reading patches */
-/* Copyright (C) 1986, 1987, 1988 Larry Wall
+/* Copyright (C) 1986, 1987, 1988, 2012 Larry Wall
Copyright (C) 1990-1993, 1997-2003, 2006, 2009-2012 Free Software
Foundation, Inc.
@@ -296,7 +296,7 @@ there_is_another_patch (bool need_header
if (t > buf + 1 && *(t - 1) == '\n')
{
inname = xmemdup0 (buf, t - buf - 1);
- inerrno = stat_file (inname, &instat);
+ inerrno = stat_file (inname, &instat, &incontext);
if (inerrno)
{
perror (inname);
@@ -433,6 +433,7 @@ intuit_diff_type (bool need_header, mode
bool extended_headers = false;
enum nametype i;
struct stat st[3];
+ security_context_t con[3];
int stat_errno[3];
int version_controlled[3];
enum diff retval;
@@ -473,6 +474,7 @@ intuit_diff_type (bool need_header, mode
version_controlled[OLD] = -1;
version_controlled[NEW] = -1;
version_controlled[INDEX] = -1;
+ con[OLD] = con[NEW] = con[INDEX] = NULL;
p_rfc934_nesting = 0;
p_timestamp[OLD].tv_sec = p_timestamp[NEW].tv_sec = -1;
p_says_nonexistent[OLD] = p_says_nonexistent[NEW] = 0;
@@ -883,7 +885,7 @@ intuit_diff_type (bool need_header, mode
}
else
{
- stat_errno[i] = stat_file (p_name[i], &st[i]);
+ stat_errno[i] = stat_file (p_name[i], &st[i], &con[i]);
if (! stat_errno[i])
{
if (lookup_file_id (&st[i]) == DELETE_LATER)
@@ -922,7 +924,7 @@ intuit_diff_type (bool need_header, mode
if (cs)
{
if (version_get (p_name[i], cs, false, readonly,
- getbuf, &st[i]))
+ getbuf, &st[i], &con[i]))
stat_errno[i] = 0;
else
version_controlled[i] = 0;
@@ -985,7 +987,7 @@ intuit_diff_type (bool need_header, mode
{
if (inname)
{
- inerrno = stat_file (inname, &instat);
+ inerrno = stat_file (inname, &instat, &incontext);
if (inerrno || (instat.st_mode & S_IFMT) == file_type)
maybe_reverse (inname, inerrno, inerrno || instat.st_size == 0);
}
@@ -998,8 +1000,14 @@ intuit_diff_type (bool need_header, mode
inerrno = stat_errno[i];
invc = version_controlled[i];
instat = st[i];
+ incontext = con[i];
+ con[i] = NULL;
}
+ for (i = OLD; i <= INDEX; i++)
+ if (con[i])
+ freecon (con[i]);
+
return retval;
}
diff -up patch-2.7.6/src/util.c.selinux patch-2.7.6/src/util.c
--- patch-2.7.6/src/util.c.selinux 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/util.c 2018-02-12 12:29:44.417225374 +0000
@@ -300,6 +300,23 @@ set_file_attributes (char const *to, enu
S_ISLNK (mode) ? "symbolic link" : "file",
quotearg (to));
}
+ if (attr & FA_SECCONTEXT)
+ {
+ security_context_t outcontext;
+ if (incontext && getfilecon (to, &outcontext) != -1 && outcontext)
+ {
+ if (strcmp (outcontext, incontext) &&
+ setfilecon (to, incontext) != 0)
+ {
+ freecon (outcontext);
+ if (errno != ENOTSUP && errno != EPERM)
+ pfatal ("Can't set security context on file %s",
+ quotearg (to));
+ }
+ else
+ freecon (outcontext);
+ }
+ }
}
static void
@@ -446,7 +463,7 @@ move_file (char const *from, bool *from_
struct stat to_st;
int to_errno;
- to_errno = stat_file (to, &to_st);
+ to_errno = stat_file (to, &to_st, NULL);
if (backup)
create_backup (to, to_errno ? NULL : &to_st, false);
if (! to_errno)
@@ -818,7 +835,8 @@ version_controller (char const *filename
Return true if successful. */
bool
version_get (char const *filename, char const *cs, bool exists, bool readonly,
- char const *getbuf, struct stat *filestat)
+ char const *getbuf, struct stat *filestat,
+ security_context_t *filecontext)
{
if (patch_get < 0)
{
@@ -843,6 +861,13 @@ version_get (char const *filename, char
fatal ("Can't get file %s from %s", quotearg (filename), cs);
if (safe_stat (filename, filestat) != 0)
pfatal ("%s", quotearg (filename));
+ if (filecontext && getfilecon (filename, filecontext) == -1)
+ {
+ if (errno == ENODATA || errno == ENOTSUP)
+ *filecontext = NULL;
+ else
+ pfatal ("%s", quotearg (filename));
+ }
}
return 1;
@@ -1670,12 +1695,28 @@ make_tempfile (char const **name, char l
return fd;
}
-int stat_file (char const *filename, struct stat *st)
+int stat_file (char const *filename, struct stat *st, security_context_t *con)
{
int (*xstat)(char const *, struct stat *) =
follow_symlinks ? safe_stat : safe_lstat;
+ int (*xgetfilecon)(char const *, security_context_t *) =
+ follow_symlinks ? getfilecon : lgetfilecon;
+
+ if (xstat (filename, st) == 0)
+ {
+ if (con)
+ {
+ if (xgetfilecon (filename, con) != -1 ||
+ errno == ENODATA || errno == ENOTSUP)
+ return 0;
- return xstat (filename, st) == 0 ? 0 : errno;
+ *con = NULL;
+ }
+ else
+ return 0;
+ }
+
+ return errno;
}
/* Check if a filename is relative and free of ".." components.
diff -up patch-2.7.6/src/util.h.selinux patch-2.7.6/src/util.h
--- patch-2.7.6/src/util.h.selinux 2018-02-03 12:41:49.000000000 +0000
+++ patch-2.7.6/src/util.h 2018-02-12 12:30:08.533190949 +0000
@@ -44,7 +44,7 @@ char *parse_name (char const *, int, cha
char *savebuf (char const *, size_t);
char *savestr (char const *);
char const *version_controller (char const *, bool, struct stat const *, char **, char **);
-bool version_get (char const *, char const *, bool, bool, char const *, struct stat *);
+bool version_get (char const *, char const *, bool, bool, char const *, struct stat *, security_context_t *);
int create_file (char const *, int, mode_t, bool);
int systemic (char const *);
char *format_linenum (char[LINENUM_LENGTH_BOUND + 1], lin);
@@ -67,7 +67,7 @@ void insert_file_id (struct stat const *
enum file_id_type lookup_file_id (struct stat const *);
void set_queued_output (struct stat const *, bool);
bool has_queued_output (struct stat const *);
-int stat_file (char const *, struct stat *);
+int stat_file (char const *, struct stat *, security_context_t *);
bool filename_is_safe (char const *) _GL_ATTRIBUTE_PURE;
bool cwd_is_root (char const *);
@@ -75,7 +75,8 @@ enum file_attributes {
FA_TIMES = 1,
FA_IDS = 2,
FA_MODE = 4,
- FA_XATTRS = 8
+ FA_XATTRS = 8,
+ FA_SECCONTEXT = 16
};
void set_file_attributes (char const *, enum file_attributes, char const *,

59
patch.spec Normal file
View File

@ -0,0 +1,59 @@
Name: patch
Version: 2.7.6
Release: 6
Summary: Utiliity which applies a patch file to original files.
License: GPLv3+
URL: http://www.gnu.org/software/patch/patch.html
Source0: https://ftp.gnu.org/gnu/patch/patch-%{version}.tar.xz
Patch0: patch-CVE-2018-1000156.patch
Patch1: patch-selinux.patch
Patch6000: CVE-2018-6951.patch
Patch6001: Fix-check-of-return-value-of-fwrite.patch
Patch6002: Don-t-leak-temporary-file-on-failed-ed-style-patch.patch
Patch6003: Don-t-leak-temporary-file-on-failed-multi-file-ed-st.patch
Patch6004: Fix-swapping-fake-lines-in-pch_swap.patch
BuildRequires: gcc libselinux-devel libattr-devel ed
Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-root
%description
Patch takes a patch file containing a difference listing produced by the
diff program and applies those differences to one or more original files,
producing patched versions.
%package help
Summary: help document
Requires: %{name} = %{version}-%{release}
BuildArch: noarch
%description help
This package provides help document for patch.
%prep
%autosetup -p1
%build
CFLAGS="$RPM_OPT_FLAGS -D_GNU_SOURCE"
%configure --disable-silent-rules
%make_build
%check
make check
%install
%makeinstall
%files
%defattr(-,root,root)
%license COPYING
%{_bindir}/patch
%files help
%defattr(-,root,root)
%doc NEWS README ChangeLog
%{_mandir}/man1/*
%changelog
* Wed Aug 28 2019 openEuler Buildteam <buildteam@openeuler.com> - 2.7.6-6
- Package Init