The read_header function in libavcodec/ffv1dec.c in FFmpeg 2.4 and 3.3.4 and possibly earlier allows remote attackers to have unspecified impact via a crafted MP4 file, which triggers an out-of-bounds read.

Several security vulnerabilities were corrected in the libav multimedia library which may lead to a denial of service, information disclosure or the execution of arbitrary code if a malformed file is processed.

CVE-2017-9993

Libav does not properly restrict HTTP Live Streaming filename extensions and demuxer names, which allows attackers to read arbitrary files via crafted playlist data.

CVE-2017-9994

libavcodec/webp.c in Libav does not ensure that pix_fmt is set, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file, related to the vp8_decode_mb_row_no_filter and pred8x8_128_dc_8_c functions.

CVE-2017-14055

denial of service in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption.

CVE-2017-14056

denial of service in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption.

CVE-2017-14057

denial of service in asf_read_marker() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption.

CVE-2017-14170

denial of service in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption.

CVE-2017-14171

denial of service in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption.

CVE-2017-14767

The sdp_parse_fmtp_config_h264 function in libavformat/rtpdec_h264.c mishandles empty sprop-parameter-sets values, which allows remote attackers to cause a denial of service (heap buffer overflow) or possibly have unspecified other impact via a crafted sdp file.

CVE-2017-15672

The read_header function in libavcodec/ffv1dec.c allows remote attackers to have unspecified impact via a crafted MP4 file, which triggers an out-of-bounds read.

CVE-2017-17130

The ff_free_picture_tables function in libavcodec/mpegpicture.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file, related to vc1_decode_i_blocks_adv.

CVE-2018-6621

The decode_frame function in libavcodec/utvideodec.c in Libav allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.

CVE-2018-7557

The decode_init function in libavcodec/utvideodec.c in Libav allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.

CVE-2018-14394

libavformat/movenc.c in Libav allows attackers to cause a denial of service (application crash caused by a divide-by-zero error) with a user crafted Waveform audio file.

CVE-2018-1999010

Libav contains multiple out of array access vulnerabilities in the mms protocol that can result in attackers accessing out of bound data.

For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u4.

We recommend that you upgrade your libav packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

MITRE reports :

Multiple vulnerabilities have been found in FFmpeg. Please refer to CVE list for details.

Note: CVE-2017-15186 and CVE-2017-15672 affect only the 3.3 branch before 3.3.5, CVE-2017-16840 and CVE-2017-17081 have been fixed in 3.4.1. They're listed here for completeness of the record.

This update for ffmpeg fixes the following issues :

Updated ffmpeg to new bugfix release 3.4.2

  - Fix integer overflows, multiplication overflows,     undefined shifts, and verify buffer lengths.

  - avfilter/vf_transpose: Fix used plane count     [boo#1078488, CVE-2018-6392]

  - avcodec/utvideodec: Fix bytes left check in     decode_frame() [boo#1079368, CVE-2018-6621] 

  - Enable use of libzvbi for displaying teletext subtitles.

  - Fixed a DoS in swri_audio_convert() [boo#1072366,     CVE-2017-17555].

Update to new bugfix release 3.4.1

  - Fixed integer overflows, division by zero, illegal bit     shifts

  - Fixed the gmc_mmx function which failed to validate     width and height [boo#1070762, CVE-2017-17081]

  - Fixed out-of-bounds in VC-2 encoder [boo#1069407,     CVE-2017-16840]

  - ffplay: use SDL2 audio API

  - install also doc/ffserver.conf

  - Update to new upstream release 3.4

  - New video filters: deflicker, doublewave, lumakey,     pixscope, oscilloscope, robterts, limiter, libvmaf,     unpremultiply, tlut2, floodifll, pseudocolor, despill,     convolve, vmafmotion.

  - New audio filters: afir, crossfeed, surround, headphone,     superequalizer, haas.

  - Some video filters with several inputs now use a common     set of options: blend, libvmaf, lut3d, overlay, psnr,     ssim. They must always be used by name.

  - librsvg support for svg rasterization

  - spec-compliant VP9 muxing support in MP4

  - Remove the libnut and libschroedinger muxer/demuxer     wrappers

  - drop deprecated qtkit input device (use avfoundation     instead)

  - SUP/PGS subtitle muxer

  - VP9 tile threading support

  - KMS screen grabber

  - CUDA thumbnail filter

  - V4L2 mem2mem HW assisted codecs

  - Rockchip MPP hardware decoding

  - (Not in openSUSE builds, only original ones:)

  - Gremlin Digital Video demuxer and decoder

  - Additional frame format support for Interplay MVE movies

  - Dolby E decoder and SMPTE 337M demuxer

  - raw G.726 muxer and demuxer, left- and right-justified

  - NewTek NDI input/output device

  - FITS demuxer, muxer, decoder and encoder

  - Fixed a double free in huffyuv [boo#1064577,     CVE-2017-15186]

  - Fixed an out-of-bounds in ffv1dec [boo#1066428,     CVE-2017-15672]

Several vulnerabilities have been discovered in the FFmpeg multimedia framework, which could result in denial of service or potentially the execution of arbitrary code if malformed files/streams are processed.

ID	Name	Product	Family	Severity
120988	Debian DLA-1630-1 : libav security update	Nessus	Debian Local Security Checks	critical
111406	FreeBSD : ffmpeg -- multiple vulnerabilities (5ccbb2f8-c798-11e7-a633-009c02a2ab30)	Nessus	FreeBSD Local Security Checks	critical
106890	openSUSE Security Update : ffmpeg (openSUSE-2018-172)	Nessus	SuSE Local Security Checks	critical
104792	Debian DSA-4049-1 : ffmpeg - security update	Nessus	Debian Local Security Checks	critical

Detections

Analytics

CVE-2017-15672

high

Tenable Plugins

critical

critical

critical

critical