fix CVE-2023-37732

(cherry picked from commit 2a1f3ce70365bbc6797f43073d914bb91f86e756)
This commit is contained in:
liningjie 2023-08-11 22:05:00 +08:00 committed by openeuler-sync-bot
parent 59beef7e9b
commit 6931a7e32a
2 changed files with 42 additions and 1 deletions

37
CVE-2023-37732.patch Normal file
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@ -0,0 +1,37 @@
From 2cd3bb50e256f5ed5f611ac611d25fe673f2cec3 Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Fri, 30 Jun 2023 08:08:55 -0700
Subject: [PATCH] elf.c: Fix NULL deref on bad xsize expression (#234)
---
modules/objfmts/elf/elf.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/modules/objfmts/elf/elf.c b/modules/objfmts/elf/elf.c
index 67fe3f26..1ee98bfd 100644
--- a/modules/objfmts/elf/elf.c
+++ b/modules/objfmts/elf/elf.c
@@ -482,15 +482,15 @@ elf_symtab_write_to_file(FILE *f, elf_symtab_head *symtab,
/* get size (if specified); expr overrides stored integer */
if (entry->xsize) {
- size_intn = yasm_intnum_copy(
- yasm_expr_get_intnum(&entry->xsize, 1));
- if (!size_intn) {
+ yasm_intnum *intn = yasm_expr_get_intnum(&entry->xsize, 1);
+ if (!intn) {
yasm_error_set(YASM_ERROR_VALUE,
N_("size specifier not an integer expression"));
yasm_errwarn_propagate(errwarns, entry->xsize->line);
- }
+ } else
+ size_intn = yasm_intnum_copy(intn);
}
- else
+ if (!size_intn)
size_intn = yasm_intnum_create_uint(entry->size);
/* get EQU value for constants */
--
2.41.0.windows.3

View File

@ -1,6 +1,6 @@
Name: yasm
Version: 1.3.0
Release: 9
Release: 10
Summary: NASM assembler
License: BSD
URL: http://yasm.tortall.net/
@ -9,6 +9,7 @@ Source0: http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz
BuildRequires: gcc bison byacc gettext-devel xmlto
Provides: bundled(md5-plumb)
Patch1: CVE-2023-37732.patch
%description
Yasm is a complete rewrite of the NASM assembler under the “new” BSD License.
@ -46,5 +47,8 @@ rm -rf %{buildroot}
%{_mandir}/*
%changelog
* Fri Aug 11 2023 liningjie <liningjie@xfusion.com> - 1.3.0-10
- fix CVE-2023-37732
* Mon Jan 6 2020 qinjian <qinjian18@huawei.com> - 1.3.0-9
- Package init