Vulnerabilities > CVE-2018-6621 - Out-of-bounds Read vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1630.NASL description 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 last seen 2020-03-17 modified 2019-01-08 plugin id 120988 published 2019-01-08 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120988 title Debian DLA-1630-1 : libav security update NASL family Debian Local Security Checks NASL id DEBIAN_DSA-4249.NASL description 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. last seen 2020-06-01 modified 2020-06-02 plugin id 111141 published 2018-07-18 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/111141 title Debian DSA-4249-1 : ffmpeg - security update NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-172.NASL description 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] last seen 2020-06-05 modified 2018-02-20 plugin id 106890 published 2018-02-20 reporter This script is Copyright (C) 2018-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/106890 title openSUSE Security Update : ffmpeg (openSUSE-2018-172)
References
- http://www.securityfocus.com/bid/102950
- http://www.securityfocus.com/bid/102950
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654b
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/118e1b0b3370dd1c0da442901b486689efd1654b
- https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6c
- https://github.com/FFmpeg/FFmpeg/commit/22aa37c0fedf14531783189a197542a055959b6c
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
- https://www.debian.org/security/2018/dsa-4249
- https://www.debian.org/security/2018/dsa-4249