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Debian DLA-1654-1 : libav security update

critical Nessus Plugin ID 121622

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Synopsis

The remote Debian host is missing a security update.

Description

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

CVE-2014-8542

libavcodec/utils.c omitted a certain codec ID during enforcement of alignment, which allowed remote attackers to cause a denial of ervice (out-of-bounds access) or possibly have unspecified other impact via crafted JV data.

CVE-2015-1207

Double-free vulnerability in libavformat/mov.c allowed remote attackers to cause a denial of service (memory corruption and crash) via a crafted .m4a file.

CVE-2017-7863

libav had an out-of-bounds write caused by a heap-based buffer overflow related to the decode_frame_common function in libavcodec/pngdec.c.

CVE-2017-7865

libav had an out-of-bounds write caused by a heap-based buffer overflow related to the ipvideo_decode_block_opcode_0xA function in libavcodec/interplayvideo.c and the avcodec_align_dimensions2 function in libavcodec/utils.c.

CVE-2017-14169

In the mxf_read_primer_pack function in libavformat/mxfdec.c in, an integer signedness error might have occured when a crafted file, claiming a large 'item_num' field such as 0xffffffff, was provided. As a result, the variable 'item_num' turned negative, bypassing the check for a large value.

CVE-2017-14223

In libavformat/asfdec_f.c a DoS in asf_build_simple_index() due to lack of an EOF (End of File) check might have caused huge CPU consumption. When a crafted ASF file, claiming a large 'ict' field in the header but not containing sufficient backing data, was provided, the for loop would have consumed huge CPU and memory resources, since there was no EOF check inside the loop.

For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u5.

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/2019/02/msg00005.html

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

Plugin Details

Severity: Critical

ID: 121622

File Name: debian_DLA-1654.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2/7/2019

Updated: 1/11/2021

Supported Sensors: Agentless 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:libav-dbg, p-cpe:/a:debian:debian_linux:libav-doc, p-cpe:/a:debian:debian_linux:libav-tools, p-cpe:/a:debian:debian_linux:libavcodec-dev, p-cpe:/a:debian:debian_linux:libavcodec-extra, p-cpe:/a:debian:debian_linux:libavcodec-extra-56, p-cpe:/a:debian:debian_linux:libavcodec56, p-cpe:/a:debian:debian_linux:libavdevice-dev, p-cpe:/a:debian:debian_linux:libavdevice55, p-cpe:/a:debian:debian_linux:libavfilter-dev, p-cpe:/a:debian:debian_linux:libavfilter5, p-cpe:/a:debian:debian_linux:libavformat-dev, p-cpe:/a:debian:debian_linux:libavformat56, p-cpe:/a:debian:debian_linux:libavresample-dev, p-cpe:/a:debian:debian_linux:libavresample2, p-cpe:/a:debian:debian_linux:libavutil-dev, p-cpe:/a:debian:debian_linux:libavutil54, p-cpe:/a:debian:debian_linux:libswscale-dev, p-cpe:/a:debian:debian_linux:libswscale3, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/6/2019

Vulnerability Publication Date: 11/5/2014

Reference Information

CVE: CVE-2014-8542, CVE-2015-1207, CVE-2017-14169, CVE-2017-14223, CVE-2017-7863, CVE-2017-7865

BID: 70881