fix CVE-2023-46218 CVE-2023-46219

backport-0001-CVE-2023-46219.patch

@@ -0,0 +1,133 @@
+From 73b65e94f3531179de45c6f3c836a610e3d0a846 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Thu, 23 Nov 2023 08:23:17 +0100
+Subject: [PATCH] fopen: create short(er) temporary file name
+
+Only using random letters in the name plus a ".tmp" extension. Not by
+appending characters to the final file name.
+
+Reported-by: Maksymilian Arciemowicz
+
+Closes #12388
+
+Conflict:Curl_rand_alnum -> Curl_rand_hex
+Reference:https://github.com/curl/curl/commit/73b65e94f3531179de45c6f3c836a610e3d0a846
+---
+ lib/fopen.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++-----
+ 1 file changed, 60 insertions(+), 5 deletions(-)
+
+diff --git a/lib/fopen.c b/lib/fopen.c
+index 75b8a7aa5..a73ac068e 100644
+--- a/lib/fopen.c
++++ b/lib/fopen.c
+@@ -39,6 +39,51 @@
+ #include "curl_memory.h"
+ #include "memdebug.h"
+ 
++/*
++  The dirslash() function breaks a null-terminated pathname string into
++  directory and filename components then returns the directory component up
++  to, *AND INCLUDING*, a final '/'.  If there is no directory in the path,
++  this instead returns a "" string.
++
++  This function returns a pointer to malloc'ed memory.
++
++  The input path to this function is expected to have a file name part.
++*/
++
++#ifdef _WIN32
++#define PATHSEP "\\"
++#define IS_SEP(x) (((x) == '/') || ((x) == '\\'))
++#elif defined(MSDOS) || defined(__EMX__) || defined(OS2)
++#define PATHSEP "\\"
++#define IS_SEP(x) ((x) == '\\')
++#else
++#define PATHSEP "/"
++#define IS_SEP(x) ((x) == '/')
++#endif
++
++static char *dirslash(const char *path)
++{
++  size_t n;
++  struct dynbuf out;
++  DEBUGASSERT(path);
++  Curl_dyn_init(&out, CURL_MAX_INPUT_LENGTH);
++  n = strlen(path);
++  if(n) {
++    /* find the rightmost path separator, if any */
++    while(n && !IS_SEP(path[n-1]))
++      --n;
++    /* skip over all the path separators, if any */
++    while(n && IS_SEP(path[n-1]))
++      --n;
++  }
++  if(Curl_dyn_addn(&out, path, n))
++    return NULL;
++  /* if there was a directory, append a single trailing slash */
++  if(n && Curl_dyn_addn(&out, PATHSEP, 1))
++    return NULL;
++  return Curl_dyn_ptr(&out);
++}
++
+ /*
+  * Curl_fopen() opens a file for writing with a temp name, to be renamed
+  * to the final name when completed. If there is an existing file using this
+@@ -50,25 +95,34 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+                     FILE **fh, char **tempname)
+ {
+   CURLcode result = CURLE_WRITE_ERROR;
+-  unsigned char randsuffix[9];
++  unsigned char randbuf[41];
+   char *tempstore = NULL;
+   struct_stat sb;
+   int fd = -1;
++  char *dir;
+   *tempname = NULL;
+ 
++  dir = dirslash(filename);
++  if(!dir)
++    goto fail;
++
+   *fh = fopen(filename, FOPEN_WRITETEXT);
+   if(!*fh)
+     goto fail;
+-  if(fstat(fileno(*fh), &sb) == -1 || !S_ISREG(sb.st_mode))
++  if(fstat(fileno(*fh), &sb) == -1 || !S_ISREG(sb.st_mode)) {
++    free(dir);
+     return CURLE_OK;
++  }
+   fclose(*fh);
+   *fh = NULL;
+ 
+-  result = Curl_rand_hex(data, randsuffix, sizeof(randsuffix));
++  result = Curl_rand_hex(data, randbuf, sizeof(randbuf));
+   if(result)
+     goto fail;
+ 
+-  tempstore = aprintf("%s.%s.tmp", filename, randsuffix);
++  /* The temp file name should not end up too long for the target file
++     system */
++  tempstore = aprintf("%s%s.tmp", dir, randbuf);
+   if(!tempstore) {
+     result = CURLE_OUT_OF_MEMORY;
+     goto fail;
+@@ -95,6 +149,7 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+   if(!*fh)
+     goto fail;
+ 
++  free(dir);
+   *tempname = tempstore;
+   return CURLE_OK;
+ 
+@@ -105,7 +160,7 @@ fail:
+   }
+ 
+   free(tempstore);
+-
++  free(dir);
+   return result;
+ }
+ 
+-- 
+2.33.0
+

backport-0002-CVE-2023-46219.patch

@@ -0,0 +1,80 @@
+From f27b8dba73295cb5296a50f2c19c0739b502eb94 Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Fri, 24 Nov 2023 09:46:32 +0100
+Subject: [PATCH] fopen: allocate the dir after fopen
+
+Move the allocation of the directory name down to after the fopen() call
+to allow that shortcut code path to avoid a superfluous malloc+free
+cycle.
+
+Follow-up to 73b65e94f35311
+
+Closes #12398
+
+Conflict:NA
+Reference:https://github.com/curl/curl/commit/f27b8dba73295cb5296a50f2c19c0739b502eb94
+---
+ lib/fopen.c | 20 +++++++++-----------
+ 1 file changed, 9 insertions(+), 11 deletions(-)
+
+diff --git a/lib/fopen.c b/lib/fopen.c
+index 2e726cc95..851279fe1 100644
+--- a/lib/fopen.c
++++ b/lib/fopen.c
+@@ -99,18 +99,13 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+   char *tempstore = NULL;
+   struct_stat sb;
+   int fd = -1;
+-  char *dir;
++  char *dir = NULL;
+   *tempname = NULL;
+ 
+-  dir = dirslash(filename);
+-  if(!dir)
+-    goto fail;
+-
+   *fh = fopen(filename, FOPEN_WRITETEXT);
+   if(!*fh)
+     goto fail;
+   if(fstat(fileno(*fh), &sb) == -1 || !S_ISREG(sb.st_mode)) {
+-    free(dir);
+     return CURLE_OK;
+   }
+   fclose(*fh);
+@@ -120,9 +115,14 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+   if(result)
+     goto fail;
+ 
+-  /* The temp file name should not end up too long for the target file
+-     system */
+-  tempstore = aprintf("%s%s.tmp", dir, randbuf);
++  dir = dirslash(filename);
++  if(dir) {
++    /* The temp file name should not end up too long for the target file
++       system */
++    tempstore = aprintf("%s%s.tmp", dir, randbuf);
++    free(dir);
++  }
++
+   if(!tempstore) {
+     result = CURLE_OUT_OF_MEMORY;
+     goto fail;
+@@ -137,7 +137,6 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+   if(!*fh)
+     goto fail;
+ 
+-  free(dir);
+   *tempname = tempstore;
+   return CURLE_OK;
+ 
+@@ -148,7 +147,6 @@ fail:
+   }
+ 
+   free(tempstore);
+-  free(dir);
+   return result;
+ }
+ 
+-- 
+2.33.0
+

backport-CVE-2023-46218.patch

@@ -0,0 +1,54 @@
+From 2b0994c29a721c91c572cff7808c572a24d251eb Mon Sep 17 00:00:00 2001
+From: Daniel Stenberg <daniel@haxx.se>
+Date: Thu, 23 Nov 2023 08:15:47 +0100
+Subject: [PATCH] cookie: lowercase the domain names before PSL checks
+
+Reported-by: Harry Sintonen
+
+Closes #12387
+
+Conflict:NA
+Reference:https://github.com/curl/curl/commit/2b0994c29a721c91c572cff7808c572a24d251eb
+---
+ lib/cookie.c | 24 ++++++++++++++++--------
+ 1 file changed, 16 insertions(+), 8 deletions(-)
+
+diff --git a/lib/cookie.c b/lib/cookie.c
+index 568cf537a..9095cea3e 100644
+--- a/lib/cookie.c
++++ b/lib/cookie.c
+@@ -1027,15 +1027,23 @@ Curl_cookie_add(struct Curl_easy *data,
+    * dereference it.
+    */
+   if(data && (domain && co->domain && !Curl_host_is_ipnum(co->domain))) {
+-    const psl_ctx_t *psl = Curl_psl_use(data);
+-    int acceptable;
+-
+-    if(psl) {
+-      acceptable = psl_is_cookie_domain_acceptable(psl, domain, co->domain);
+-      Curl_psl_release(data);
++    bool acceptable = FALSE;
++    char lcase[256];
++    char lcookie[256];
++    size_t dlen = strlen(domain);
++    size_t clen = strlen(co->domain);
++    if((dlen < sizeof(lcase)) && (clen < sizeof(lcookie))) {
++      const psl_ctx_t *psl = Curl_psl_use(data);
++      if(psl) {
++        /* the PSL check requires lowercase domain name and pattern */
++        Curl_strntolower(lcase, domain, dlen + 1);
++        Curl_strntolower(lcookie, co->domain, clen + 1);
++        acceptable = psl_is_cookie_domain_acceptable(psl, lcase, lcookie);
++        Curl_psl_release(data);
++      }
++      else
++        acceptable = !bad_domain(domain, strlen(domain));
+     }
+-    else
+-      acceptable = !bad_domain(domain, strlen(domain));
+ 
+     if(!acceptable) {
+       infof(data, "cookie '%s' dropped, domain '%s' must not "
+-- 
+2.33.0
+

curl.spec

@@ -6,7 +6,7 @@
 
 Name:           curl
 Version:        8.1.2
-Release:        5
+Release:        6
 Summary:        Curl is used in command lines or scripts to transfer data
 License:        curl
 URL:            https://curl.se/
@@ -21,6 +21,9 @@ Patch7:         backport-urlapi-make-sure-zoneid-is-also-duplicated-in-curl_u.pa
 Patch8:         backport-CVE-2023-38039.patch
 Patch9:         backport-CVE-2023-38545.patch
 Patch10:        backport-CVE-2023-38546.patch
+Patch11:        backport-CVE-2023-46218.patch
+Patch12:        backport-0001-CVE-2023-46219.patch
+Patch13:        backport-0002-CVE-2023-46219.patch
 
 BuildRequires:  automake brotli-devel coreutils gcc groff krb5-devel
 BuildRequires:  libidn2-devel libnghttp2-devel libpsl-devel
@@ -205,6 +208,12 @@ rm -rf ${RPM_BUILD_ROOT}%{_libdir}/libcurl.la
 %{_mandir}/man3/*
 
 %changelog
+* Fri Dec 08 2023 zhouyihang <zhouyihang3@h-partners.com> - 8.1.2-6
+- Type:CVE
+- CVE:CVE-2023-46218 CVE-2023-46219
+- SUG:NA
+- DESC:fix CVE-2023-46218 CVE-2023-46219
+
 * Thu Oct 12 2023 zhouyihang <zhouyihang3@h-partners.com> - 8.1.2-5
 - Type:CVE
 - CVE:CVE-2023-38545 CVE-2023-38546