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Debian DLA-1142-1 : libav security update

critical Nessus Plugin ID 104056

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Synopsis

The remote Debian host is missing a security update.

Description

Multiple vulnerabilities have been found in libav :

CVE-2015-8365

The smka_decode_frame function in libavcodec/smacker.c does not verify that the data size is consistent with the number of channels, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Smacker data.

CVE-2017-7208

The decode_residual function in libavcodec allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.

CVE-2017-7862

The decode_frame function in libavcodec/pictordec.c is vulnerable to an out-of-bounds write caused by a heap-based buffer overflow.

CVE-2017-9992

The decode_dds1 function in libavcodec/dfa.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.

For Debian 7 'Wheezy', these problems have been fixed in version 6:0.8.21-0+deb7u1.

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.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2017/10/msg00021.html

https://packages.debian.org/source/wheezy/libav

Plugin Details

Severity: Critical

ID: 104056

File Name: debian_DLA-1142.nasl

Version: 3.6

Type: local

Agent: unix

Published: 10/23/2017

Updated: 1/11/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libavdevice-extra-53, p-cpe:/a:debian:debian_linux:ffmpeg-doc, p-cpe:/a:debian:debian_linux:libav-extra-dbg, p-cpe:/a:debian:debian_linux:libswscale2, p-cpe:/a:debian:debian_linux:libavfilter-extra-2, p-cpe:/a:debian:debian_linux:libswscale-dev, p-cpe:/a:debian:debian_linux:libpostproc-extra-52, p-cpe:/a:debian:debian_linux:libav-dbg, p-cpe:/a:debian:debian_linux:libavdevice53, p-cpe:/a:debian:debian_linux:libavutil51, p-cpe:/a:debian:debian_linux:libavfilter2, p-cpe:/a:debian:debian_linux:libswscale-extra-2, p-cpe:/a:debian:debian_linux:libavformat-extra-53, p-cpe:/a:debian:debian_linux:libavcodec-extra-53, p-cpe:/a:debian:debian_linux:ffmpeg-dbg, p-cpe:/a:debian:debian_linux:libavcodec53, p-cpe:/a:debian:debian_linux:libavcodec-dev, p-cpe:/a:debian:debian_linux:libav-tools, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:libavdevice-dev, p-cpe:/a:debian:debian_linux:ffmpeg, p-cpe:/a:debian:debian_linux:libpostproc-dev, p-cpe:/a:debian:debian_linux:libavfilter-dev, p-cpe:/a:debian:debian_linux:libavutil-extra-51, p-cpe:/a:debian:debian_linux:libavformat53, p-cpe:/a:debian:debian_linux:libav-doc, p-cpe:/a:debian:debian_linux:libavutil-dev, p-cpe:/a:debian:debian_linux:libavformat-dev, p-cpe:/a:debian:debian_linux:libpostproc52

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2017

Reference Information

CVE: CVE-2015-8365, CVE-2017-7208, CVE-2017-7862, CVE-2017-9992