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-rw-r--r--debian/patches/1001-LZW-decompress-fix-for-CVE-2011-2895-From-xorg-lib-X.patch29
1 files changed, 29 insertions, 0 deletions
diff --git a/debian/patches/1001-LZW-decompress-fix-for-CVE-2011-2895-From-xorg-lib-X.patch b/debian/patches/1001-LZW-decompress-fix-for-CVE-2011-2895-From-xorg-lib-X.patch
new file mode 100644
index 000000000..162bb218b
--- /dev/null
+++ b/debian/patches/1001-LZW-decompress-fix-for-CVE-2011-2895-From-xorg-lib-X.patch
@@ -0,0 +1,29 @@
+From af55da1e9c1a6a352b24823a8f7062c288ffbbc0 Mon Sep 17 00:00:00 2001
+From: Mike DePaulo <mikedep333@gmail.com>
+Date: Sun, 8 Feb 2015 19:15:20 -0500
+Subject: [PATCH 01/40] LZW decompress: fix for CVE-2011-2895 From
+ xorg/lib/Xfont commit d11ee5886e9d9ec610051a206b135a4cdc1e09a0
+
+ Specially crafted LZW stream can crash an application using libXfont
+ that is used to open untrusted font files. With X server, this may
+ allow privilege escalation when exploited
+---
+ nx-X11/lib/font/fontfile/decompress.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/nx-X11/lib/font/fontfile/decompress.c b/nx-X11/lib/font/fontfile/decompress.c
+index a4c5468..553b315 100644
+--- a/nx-X11/lib/font/fontfile/decompress.c
++++ b/nx-X11/lib/font/fontfile/decompress.c
+@@ -261,6 +261,8 @@ BufCompressedFill (BufFilePtr f)
+ */
+ while ( code >= 256 )
+ {
++ if (stackp - de_stack >= STACK_SIZE - 1)
++ return BUFFILEEOF;
+ *stackp++ = file->tab_suffix[code];
+ code = file->tab_prefix[code];
+ }
+--
+2.1.4
+