mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-30 08:02:38 -05:00
a630c64709
* gnu/packages/patches/p7zip-CVE-2017-17969.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/compression.scm (p7zip)[source]: Use it.
35 lines
1.1 KiB
Diff
35 lines
1.1 KiB
Diff
Fix CVE-2017-17969:
|
|
|
|
https://sourceforge.net/p/p7zip/bugs/204/
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17969
|
|
|
|
Patch copied from Debian.
|
|
|
|
Subject: Heap-based buffer overflow in 7zip/Compress/ShrinkDecoder.cpp
|
|
Origin: vendor, https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/27d7/attachment/CVE-2017-17969.patch
|
|
Forwarded: https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/#27d7
|
|
Bug: https://sourceforge.net/p/p7zip/bugs/204/
|
|
Bug-Debian: https://bugs.debian.org/888297
|
|
Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2017-17969
|
|
Author: Antoine Beaupré <anarcat@debian.org>
|
|
Reviewed-by: Salvatore Bonaccorso <carnil@debian.org>
|
|
Last-Update: 2018-02-01
|
|
Applied-Upstream: 18.00-beta
|
|
|
|
--- a/CPP/7zip/Compress/ShrinkDecoder.cpp
|
|
+++ b/CPP/7zip/Compress/ShrinkDecoder.cpp
|
|
@@ -121,8 +121,13 @@ HRESULT CDecoder::CodeReal(ISequentialIn
|
|
{
|
|
_stack[i++] = _suffixes[cur];
|
|
cur = _parents[cur];
|
|
+ if (cur >= kNumItems || i >= kNumItems)
|
|
+ break;
|
|
}
|
|
-
|
|
+
|
|
+ if (cur >= kNumItems || i >= kNumItems)
|
|
+ break;
|
|
+
|
|
_stack[i++] = (Byte)cur;
|
|
lastChar2 = (Byte)cur;
|
|
|