diff options
Diffstat (limited to 'meta-oe/recipes-extended/p7zip/files/CVE-2017-17969.patch')
| -rw-r--r-- | meta-oe/recipes-extended/p7zip/files/CVE-2017-17969.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/meta-oe/recipes-extended/p7zip/files/CVE-2017-17969.patch b/meta-oe/recipes-extended/p7zip/files/CVE-2017-17969.patch new file mode 100644 index 0000000000..177d1455f8 --- /dev/null +++ b/meta-oe/recipes-extended/p7zip/files/CVE-2017-17969.patch @@ -0,0 +1,31 @@ +p7zip: Fix CVE-2017-17969 + +[No upstream tracking] -- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=888297 + +Heap-based buffer overflow in 7zip + +Compress/ShrinkDecoder.cpp: Heap-based buffer overflow +in the NCompress::NShrink::CDecoder::CodeReal method +in 7-Zip before 18.00 and p7zip allows remote attackers +to cause a denial of service (out-of-bounds write) +or potentially execute arbitrary code via a crafted ZIP archive. + +Upstream-Status: Backport [https://sourceforge.net/p/p7zip/bugs/_discuss/thread/0920f369/8316/attachment/CVE-2017-17969.patch] +CVE: CVE-2017-17969 +Signed-off-by: Radovan Scasny <radovan.scasny@siemens.com> + +--- a/CPP/7zip/Compress/ShrinkDecoder.cpp ++++ b/CPP/7zip/Compress/ShrinkDecoder.cpp +@@ -121,7 +121,12 @@ HRESULT CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream * + { + _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; |