diff options
Diffstat (limited to 'multimedia/mythtv/files/patch-CVE-2017-14055')
| -rw-r--r-- | multimedia/mythtv/files/patch-CVE-2017-14055 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/multimedia/mythtv/files/patch-CVE-2017-14055 b/multimedia/mythtv/files/patch-CVE-2017-14055 new file mode 100644 index 000000000000..f0190690aafe --- /dev/null +++ b/multimedia/mythtv/files/patch-CVE-2017-14055 @@ -0,0 +1,28 @@ +From d4fc6b211f19365fbae4b4388ec396b293fda249 Mon Sep 17 00:00:00 2001 +From: Michael Niedermayer <michael@niedermayer.cc> +Date: Fri, 25 Aug 2017 01:15:30 +0200 +Subject: [PATCH] avformat/mvdec: Fix DoS due to lack of eof check + +Fixes: loop.mv + +Found-by: Xiaohei and Wangchu from Alibaba Security Team +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> +(cherry picked from commit 4f05e2e2dc1a89f38cd9f0960a6561083d714f1e) +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> +--- + libavformat/mvdec.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git libavformat/mvdec.c libavformat/mvdec.c +index 80ef4b1569a..e9e9fab5036 100644 +--- external/FFmpeg/libavformat/mvdec.c ++++ external/FFmpeg/libavformat/mvdec.c +@@ -338,6 +338,8 @@ static int mv_read_header(AVFormatContext *avctx) + uint32_t pos = avio_rb32(pb); + uint32_t asize = avio_rb32(pb); + uint32_t vsize = avio_rb32(pb); ++ if (avio_feof(pb)) ++ return AVERROR_INVALIDDATA; + avio_skip(pb, 8); + av_add_index_entry(ast, pos, timestamp, asize, 0, AVINDEX_KEYFRAME); + av_add_index_entry(vst, pos + asize, i, vsize, 0, AVINDEX_KEYFRAME); |