FFmpeg before 4.2 has a heap-based buffer overflow in vqa_decode_chunk because of an out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.

Several vulnerabilities have been fixed by upgrading FFmpeg, a widely used multimedia framework, from 3.2.14 to 3.2.15.

CVE-2019-13390

rawenc: Only accept the appropriate stream type for raw muxers.

CVE-2019-17542

Heap-based buffer overflow in vqa_decode_chunk.

CVE-2020-13904

Use-after-free via a crafted EXTINF duration in an m3u8 file.

For Debian 9 stretch, these problems have been fixed in version 7:3.2.15-0+deb9u1.

Several other bugs are also fixed in 3.2.15, a full list of changes is available at https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/37a8ad9a3167923d50091003 1a8086489c004d83:/Changelog

We recommend that you upgrade your ffmpeg packages.

For the detailed security status of ffmpeg please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ffmpeg

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.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4431-1 advisory.

    It was discovered that FFmpeg incorrectly verified empty audio packets or HEVC data. An attacker could     possibly use this issue to cause a denial of service via a crafted file. This issue only affected Ubuntu     16.04 LTS, as it was already fixed in Ubuntu 18.04 LTS. For more information see:
    https://usn.ubuntu.com/usn/usn-3967-1 (CVE-2018-15822, CVE-2019-11338)

    It was discovered that FFmpeg incorrectly handled sscanf failures. An attacker could possibly use this     issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 16.04 LTS     and Ubuntu 18.04 LTS. (CVE-2019-12730)

    It was discovered that FFmpeg incorrectly handled certain WEBM files. An attacker could possibly use this     issue to obtain sensitive data or other unspecified impact. This issue only affected Ubuntu 20.04 LTS.
    (CVE-2019-13312)

    It was discovered that FFmpeg incorrectly handled certain AVI files. An attacker could possibly use this     issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 16.04 LTS     and Ubuntu 18.04 LTS. (CVE-2019-13390)

    It was discovered that FFmpeg incorrectly handled certain input. An attacker could possibly use this issue     to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2019-17539)

    It was discovered that FFmpeg incorrectly handled certain input during decoding of VQA files. An attacker     could possibly use this issue to obtain sensitive information or other unspecified impact. This issue only     affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-17542)

    It was discovered that FFmpeg incorrectly handled certain JPEG files. An attacker could possibly use this     issue to obtain sensitive information or other unspecified impact. This issue only affected Ubuntu 20.04     LTS. (CVE-2020-12284)

    It was discovered that FFmpeg incorrectly handled certain M3U8 files. An attacker could possibly use this     issue to obtain sensitive information or other unspecified impact. (CVE-2020-13904)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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.

This update for ffmpeg fixes the following issues :

Security issues fixed: CVE-2019-17542: Fixed a heap-buffer overflow in vqa_decode_chunk due to an out-of-array access (bsc#1154064).

CVE-2019-12730: Fixed an uninitialized use of variables due to an improper check (bsc#1137526).

CVE-2019-9718: Fixed a denial of service in the subtitle decode (bsc#1129715).

CVE-2018-13301: Fixed a denial of service while converting a crafted AVI file to MPEG4 (bsc#1100352).

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

The remote host is affected by the vulnerability described in GLSA-202003-65 (FFmpeg: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in FFmpeg. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could entice a user or automated system using FFmpeg       to process a specially crafted file, resulting in the execution of       arbitrary code or a Denial of Service.
  Workaround :

    There is no known workaround at this time.

This update for ffmpeg fixes the following issues :

Security issues fixed :

CVE-2019-17542: Fixed a heap-buffer overflow in vqa_decode_chunk due to an out-of-array access (bsc#1154064).

CVE-2019-12730: Fixed an uninitialized use of variables due to an improper check (bsc#1137526).

CVE-2019-9718: Fixed a denial of service in the subtitle decode (bsc#1129715).

CVE-2018-13301: Fixed a denial of service while converting a crafted AVI file to MPEG4 (bsc#1100352).

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

Several security issues were fixed in libav, a multimedia library for processing audio and video files.

CVE-2017-17127

The vc1_decode_frame function in libavcodec/vc1dec.c allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file. CVE-2018-19130 is a duplicate of this vulnerability.

CVE-2017-18245

The mpc8_probe function in libavformat/mpc8.c allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted audio file on 32-bit systems.

CVE-2018-19128

Heap-based buffer over-read in decode_frame in libavcodec/lcldec.c allows an attacker to cause denial of service via a crafted avi file.

CVE-2019-14443

Division by zero in range_decode_culshift in libavcodec/apedec.c allows remote attackers to cause a denial of service (application crash), as demonstrated by avconv.

CVE-2019-17542

Heap-based buffer overflow in vqa_decode_chunk because of an out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.

For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u9.

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.

ID	Name	Product	Family	Severity
139008	Debian DLA-2291-1 : ffmpeg security update	Nessus	Debian Local Security Checks	critical
138875	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : FFmpeg vulnerabilities (USN-4431-1)	Nessus	Ubuntu Local Security Checks	critical
138365	Debian DSA-4722-1 : ffmpeg - security update	Nessus	Debian Local Security Checks	critical
138253	SUSE SLED15 / SLES15 Security Update : ffmpeg (SUSE-SU-2019:3184-2)	Nessus	SuSE Local Security Checks	critical
135020	GLSA-202003-65 : FFmpeg: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	critical
131756	SUSE SLED15 / SLES15 Security Update : ffmpeg (SUSE-SU-2019:3184-1)	Nessus	SuSE Local Security Checks	critical
131740	Debian DLA-2021-1 : libav security update	Nessus	Debian Local Security Checks	critical

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