diff options
Diffstat (limited to 'multimedia/mythtv/files/patch-CVE-2017-14171')
| -rw-r--r-- | multimedia/mythtv/files/patch-CVE-2017-14171 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/multimedia/mythtv/files/patch-CVE-2017-14171 b/multimedia/mythtv/files/patch-CVE-2017-14171 new file mode 100644 index 000000000000..a5b729aea2af --- /dev/null +++ b/multimedia/mythtv/files/patch-CVE-2017-14171 @@ -0,0 +1,38 @@ +From a051de092e9c709b69d24d94b66a382909be67d5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?=E5=AD=99=E6=B5=A9=28=E6=99=93=E9=BB=91=29?= + <tony.sh@alibaba-inc.com> +Date: Tue, 29 Aug 2017 23:59:21 +0200 +Subject: [PATCH] avformat/nsvdec: Fix DoS due to lack of eof check in + nsvs_file_offset loop. +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Fixes: 20170829.nsv + +Co-Author: 张洪亮(望初)" <wangchu.zhl@alibaba-inc.com> +Found-by: Xiaohei and Wangchu from Alibaba Security Team +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> +(cherry picked from commit c24bcb553650b91e9eff15ef6e54ca73de2453b7) +Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> +--- + libavformat/nsvdec.c | 5 ++++- + 1 file changed, 4 insertions(+), 1 deletion(-) + +diff --git libavformat/nsvdec.c libavformat/nsvdec.c +index 507fb396a51..16d2fa59e21 100644 +--- external/FFmpeg/libavformat/nsvdec.c ++++ external/FFmpeg/libavformat/nsvdec.c +@@ -350,8 +350,11 @@ static int nsv_parse_NSVf_header(AVFormatContext *s) + if (!nsv->nsvs_file_offset) + return AVERROR(ENOMEM); + +- for(i=0;i<table_entries_used;i++) ++ for(i=0;i<table_entries_used;i++) { ++ if (avio_feof(pb)) ++ return AVERROR_INVALIDDATA; + nsv->nsvs_file_offset[i] = avio_rl32(pb) + size; ++ } + + if(table_entries > table_entries_used && + avio_rl32(pb) == MKTAG('T','O','C','2')) { |