user/vorbis-tools: cleanup sec patches from upstream

https://gitlab.xiph.org/xiph/vorbis-tools

1 files changed, 46 insertions, 0 deletions

diff --git a/user/vorbis-tools/CVE-2015-6749.patch b/user/vorbis-tools/CVE-2015-6749.patch
new file mode 100644
index 000000000..b83f70cc2
--- /dev/null
+++ b/user/vorbis-tools/CVE-2015-6749.patch
@@ -0,0 +1,46 @@
+From c1059cd1e5c9278fe73a044d0e0792cac75f44b3 Mon Sep 17 00:00:00 2001
+From: Petter Reinholdtsen <pere@debian.org>
+Date: Tue, 22 Sep 2015 14:56:58 +0200
+Subject: [PATCH] oggenc: Fix large alloca on bad AIFF input (CVE-2015-6749).
+
+Author: Mark Harris <mark.hsj@gmail.com>
+Origin: https://trac.xiph.org/attachment/ticket/2212/0001-oggenc-Fix-large-alloca-on-bad-AIFF-input.patch
+Bug-Debian: https://bugs.debian.org/797461
+Forwarded: https://trac.xiph.org/ticket/2212
+Reviewed-By: Petter Reinholdtsen <pere@hungry.com>
+Last-Update: 2015-09-22
+---
+ oggenc/audio.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/oggenc/audio.c b/oggenc/audio.c
+index 477da8c..4921fb9 100644
+--- a/oggenc/audio.c
++++ b/oggenc/audio.c
+@@ -245,8 +245,8 @@ static int aiff_permute_matrix[6][6] =
+ int aiff_open(FILE *in, oe_enc_opt *opt, unsigned char *buf, int buflen)
+ {
+     int aifc; /* AIFC or AIFF? */
+-    unsigned int len;
+-    unsigned char *buffer;
++    unsigned int len, readlen;
++    unsigned char buffer[22];
+     unsigned char buf2[8];
+     aiff_fmt format;
+     aifffile *aiff = malloc(sizeof(aifffile));
+@@ -269,9 +269,9 @@ int aiff_open(FILE *in, oe_enc_opt *opt, unsigned char *buf, int buflen)
+         return 0; /* Weird common chunk */
+     }
+ 
+-    buffer = alloca(len);
+-
+-    if(fread(buffer,1,len,in) < len)
++    readlen = len < sizeof(buffer) ? len : sizeof(buffer);
++    if(fread(buffer,1,readlen,in) < readlen ||
++       (len > readlen && !seek_forward(in, len-readlen)))
+     {
+         fprintf(stderr, _("Warning: Unexpected EOF in reading AIFF header\n"));
+         return 0;
+-- 
+GitLab
+