fd43037c8c
Fixes the following security vulnerabilities: - CVE-2014-9638: oggenc in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (divide-by-zero error and crash) via a WAV file with the number of channels set to zero. - CVE-2014-9639: Integer overflow in oggenc in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (crash) via a crafted number of channels in a WAV file, which triggers an out-of-bounds memory access. - CVE-2014-9640: oggenc/oggenc.c in vorbis-tools 1.4.0 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted raw file. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
89 lines
2.8 KiB
Diff
89 lines
2.8 KiB
Diff
From 3bbabc06c4b35c84f6747ed850213161aca568c7 Mon Sep 17 00:00:00 2001
|
|
From: Petter Reinholdtsen <pere@debian.org>
|
|
Date: Tue, 22 Sep 2015 15:14:06 +0200
|
|
Subject: [PATCH] oggenc: validate count of channels in the header
|
|
(CVE-2014-9638 & CVE-2014-9639)
|
|
|
|
Author: Kamil Dudka <kdudka@redhat.com>
|
|
Origin: http://lists.xiph.org/pipermail/vorbis-dev/2015-February/020423.html
|
|
Bug: https://trac.xiph.org/ticket/2136
|
|
Bug: https://trac.xiph.org/ticket/2137
|
|
Bug-Debian: https://bugs.debian.org/776086
|
|
Forwarded: not-needed
|
|
Reviewed-By: Petter Reinholdtsen <pere@hungry.com>
|
|
Last-Update: 2015-09-22
|
|
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
|
|
---
|
|
oggenc/audio.c | 18 ++++++++++++++++--
|
|
1 file changed, 16 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/oggenc/audio.c b/oggenc/audio.c
|
|
index 4921fb9..535a704 100644
|
|
--- a/oggenc/audio.c
|
|
+++ b/oggenc/audio.c
|
|
@@ -13,6 +13,7 @@
|
|
#include <config.h>
|
|
#endif
|
|
|
|
+#include <limits.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
@@ -251,6 +252,7 @@ int aiff_open(FILE *in, oe_enc_opt *opt, unsigned char *buf, int buflen)
|
|
aiff_fmt format;
|
|
aifffile *aiff = malloc(sizeof(aifffile));
|
|
int i;
|
|
+ long channels;
|
|
|
|
if(buf[11]=='C')
|
|
aifc=1;
|
|
@@ -277,11 +279,16 @@ int aiff_open(FILE *in, oe_enc_opt *opt, unsigned char *buf, int buflen)
|
|
return 0;
|
|
}
|
|
|
|
- format.channels = READ_U16_BE(buffer);
|
|
+ format.channels = channels = READ_U16_BE(buffer);
|
|
format.totalframes = READ_U32_BE(buffer+2);
|
|
format.samplesize = READ_U16_BE(buffer+6);
|
|
format.rate = (int)read_IEEE80(buffer+8);
|
|
|
|
+ if(channels <= 0L || SHRT_MAX < channels)
|
|
+ {
|
|
+ fprintf(stderr, _("Warning: Unsupported count of channels in AIFF header\n"));
|
|
+ return 0;
|
|
+ }
|
|
aiff->bigendian = 1;
|
|
|
|
if(aifc)
|
|
@@ -416,6 +423,7 @@ int wav_open(FILE *in, oe_enc_opt *opt, unsigned char *oldbuf, int buflen)
|
|
wav_fmt format;
|
|
wavfile *wav = malloc(sizeof(wavfile));
|
|
int i;
|
|
+ long channels;
|
|
|
|
/* Ok. At this point, we know we have a WAV file. Now we have to detect
|
|
* whether we support the subtype, and we have to find the actual data
|
|
@@ -453,12 +461,18 @@ int wav_open(FILE *in, oe_enc_opt *opt, unsigned char *oldbuf, int buflen)
|
|
}
|
|
|
|
format.format = READ_U16_LE(buf);
|
|
- format.channels = READ_U16_LE(buf+2);
|
|
+ format.channels = channels = READ_U16_LE(buf+2);
|
|
format.samplerate = READ_U32_LE(buf+4);
|
|
format.bytespersec = READ_U32_LE(buf+8);
|
|
format.align = READ_U16_LE(buf+12);
|
|
format.samplesize = READ_U16_LE(buf+14);
|
|
|
|
+ if(channels <= 0L || SHRT_MAX < channels)
|
|
+ {
|
|
+ fprintf(stderr, _("Warning: Unsupported count of channels in WAV header\n"));
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
if(format.format == -2) /* WAVE_FORMAT_EXTENSIBLE */
|
|
{
|
|
if(len<40)
|
|
--
|
|
2.20.1
|
|
|