This update for ffmpeg fixes the following issues :

CVE-2018-13300: An improper argument passed to the avpriv_request_sample function may have triggered an out-of-array read while converting a crafted AVI file to MPEG4, leading to a denial of service and possibly an information disclosure (bsc#1100348)

CVE-2018-15822: The flv_write_packet function did not check for an empty audio packet, leading to an assertion failure and DoS (bsc#1105869)

CVE-2018-13305: Due to a missing check for negative values of the mquant variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c may trigger an out-of-array access while converting a crafted AVI file to MPEG4, leading to an information disclosure or a denial of service. (bsc#1100345).

CVE-2018-12458: An improper integer type in the mpeg4_encode_gop_header function in libavcodec/mpeg4videoenc.c might have triggered an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service. (bsc#1097983).

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.

This update for ffmpeg-4 to version 4.0.2 fixes the following issues :

These security issues were fixed :

  - CVE-2018-15822: The flv_write_packet function did not     check for an empty audio packet, leading to an assertion     failure and DoS (bsc#1105869).

  - CVE-2018-13300: An improper argument passed to the     avpriv_request_sample function may have triggered an     out-of-array read while converting a crafted AVI file to     MPEG4, leading to a denial of service and possibly an     information disclosure (bsc#1100348).

These non-security issues were fixed :

  - Enable webvtt encoders and decoders (boo#1092241).

  - Build codec2 encoder and decoder, add libcodec2 to     enable_decoders and enable_encoders.

  - Enable mpeg 1 and 2 encoders.

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.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3967-1 advisory.

    It was discovered that FFmpeg contained multiple security issues when handling certain multimedia files.
    If a user were tricked into opening a crafted multimedia file, an attacker could cause a denial of service     via application crash.

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.

Two more security issues have been corrected in multiple demuxers and decoders of the libav multimedia library.

CVE-2018-15822

The flv_write_packet function in libavformat/flvenc.c in libav did not check for an empty audio packet, leading to an assertion failure.

CVE-2019-11338

libavcodec/hevcdec.c in libav mishandled detection of duplicate first slices, which allowed remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u7.

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	Published	Updated	Severity
120152	SUSE SLED15 / SLES15 Security Update : ffmpeg (SUSE-SU-2018:3609-1)	Nessus	SuSE Local Security Checks	1/2/2019	7/10/2024	high
123300	openSUSE Security Update : ffmpeg-4 (openSUSE-2019-691)	Nessus	SuSE Local Security Checks	3/27/2019	6/11/2024	high
138875	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : FFmpeg vulnerabilities (USN-4431-1)	Nessus	Ubuntu Local Security Checks	7/23/2020	9/3/2025	critical
125344	Debian DSA-4449-1 : ffmpeg - security update	Nessus	Debian Local Security Checks	5/23/2019	5/21/2024	high
124678	Ubuntu 18.04 LTS : FFmpeg vulnerabilities (USN-3967-1)	Nessus	Ubuntu Local Security Checks	5/7/2019	8/27/2024	high
117517	openSUSE Security Update : ffmpeg-4 (openSUSE-2018-1004)	Nessus	SuSE Local Security Checks	9/17/2018	8/7/2024	high
125555	Debian DLA-1809-1 : libav security update	Nessus	Debian Local Security Checks	5/30/2019	5/17/2024	high

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