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authorEfraim Flashner <efraim@flashner.co.il>2017-02-03 22:17:41 +0200
committerEfraim Flashner <efraim@flashner.co.il>2017-02-03 22:17:41 +0200
commit1ac675a5831e39968be3c137a4ff448c9f65f48e (patch)
tree89433cb9413ffb193ffc134989a271a947f8b01a /gnu/packages/patches
parentb352b57655197d335e4dddcbc837e44a38b646b8 (diff)
downloadguix-1ac675a5831e39968be3c137a4ff448c9f65f48e.tar
guix-1ac675a5831e39968be3c137a4ff448c9f65f48e.tar.gz
gnu: p7zip: Fix CVE-2016-9256.
* gnu/packages/compression.scm (p7zip)[source]: Add patch. * gnu/packages/patches/p7zip-CVE-2016-9296.patch: New file. * gnu/local.mk (dist_patch_DATA): Register it.
Diffstat (limited to 'gnu/packages/patches')
-rw-r--r--gnu/packages/patches/p7zip-CVE-2016-9296.patch24
1 files changed, 24 insertions, 0 deletions
diff --git a/gnu/packages/patches/p7zip-CVE-2016-9296.patch b/gnu/packages/patches/p7zip-CVE-2016-9296.patch
new file mode 100644
index 0000000000..3fa80377ad
--- /dev/null
+++ b/gnu/packages/patches/p7zip-CVE-2016-9296.patch
@@ -0,0 +1,24 @@
+From: Robert Luberda <robert@debian.org>
+Date: Sat, 19 Nov 2016 08:48:08 +0100
+Subject: Fix nullptr dereference (CVE-2016-9296)
+
+Patch taken from https://sourceforge.net/p/p7zip/bugs/185/
+This patch file taken from Debian's patch set for p7zip
+---
+ CPP/7zip/Archive/7z/7zIn.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/CPP/7zip/Archive/7z/7zIn.cpp b/CPP/7zip/Archive/7z/7zIn.cpp
+index b0c6b98..7c6dde2 100644
+--- a/CPP/7zip/Archive/7z/7zIn.cpp
++++ b/CPP/7zip/Archive/7z/7zIn.cpp
+@@ -1097,7 +1097,8 @@ HRESULT CInArchive::ReadAndDecodePackedStreams(
+ if (CrcCalc(data, unpackSize) != folders.FolderCRCs.Vals[i])
+ ThrowIncorrect();
+ }
+- HeadersSize += folders.PackPositions[folders.NumPackStreams];
++ if (folders.PackPositions)
++ HeadersSize += folders.PackPositions[folders.NumPackStreams];
+ return S_OK;
+ }
+