mirror of
https://git.yoctoproject.org/poky
synced 2026-09-15 15:49:32 +02:00
bc651f4b3a
Multiple integer overflows in GNU Grep before 2.11 might allow context-dependent attackers to execute arbitrary code via vectors involving a long input line that triggers a heap-based buffer overflow. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-5667 (From OE-Core master rev: 7dd4d0178e2b057f76cd2b0b6fe8402f8c1ab23d) (From OE-Core rev: aefb760f6bb2522e0a0fec19a6bf1a761cf3c03e) Signed-off-by: Ming Liu <ming.liu@windriver.com> Signed-off-by: Mark Hatle <mark.hatle@windriver.com> Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
The patch to fix CVE-2012-5667
|
|
Reference: https://bugzilla.redhat.com/attachment.cgi?id=686605&action=diff
|
|
|
|
Multiple integer overflows in GNU Grep before 2.11 might allow
|
|
context-dependent attackers to execute arbitrary code via vectors
|
|
involving a long input line that triggers a heap-based buffer overflow.
|
|
|
|
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-5667
|
|
|
|
Upstream-status: Inappropriate [other]
|
|
This version of GNU Grep has been abandoned upstream and they are no longer
|
|
accepting patches. This is not a backport.
|
|
|
|
Signed-off-by Ming Liu <ming.liu@windriver.com>
|
|
---
|
|
grep.c | 7 +++----
|
|
1 file changed, 3 insertions(+), 4 deletions(-)
|
|
|
|
--- a/src/grep.c 2013-05-15 13:39:33.359191769 +0800
|
|
+++ a/src/grep.c 2013-05-15 13:50:22.609191882 +0800
|
|
@@ -306,6 +306,11 @@ fillbuf (size_t save, struct stats const
|
|
int cc = 1;
|
|
char *readbuf;
|
|
size_t readsize;
|
|
+ const size_t max_save = INT_MAX / 2;
|
|
+
|
|
+ /* Limit the amount of saved data to INT_MAX to fix CVE-2012-5667 */
|
|
+ if (save > max_save)
|
|
+ error (2, 0, _("line too long"));
|
|
|
|
/* Offset from start of buffer to start of old stuff
|
|
that we want to save. */
|