Debian DSA-3399-1 : libpng - security update

High Nessus Plugin ID 86921

Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities have been discovered in the libpng PNG library. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2015-7981 Qixue Xiao discovered an out-of-bounds read vulnerability in the png_convert_to_rfc1123 function. A remote attacker can potentially take advantage of this flaw to cause disclosure of information from process memory.

- CVE-2015-8126 Multiple buffer overflows were discovered in the png_set_PLTE and png_get_PLTE functions. A remote attacker can take advantage of this flaw to cause a denial of service (application crash) via a small bit-depth value in an IHDR (image header) chunk in a PNG image.

Solution

Upgrade the libpng packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.49-1+deb7u1.

For the stable distribution (jessie), these problems have been fixed in version 1.2.50-2+deb8u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=803078

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=805113

https://security-tracker.debian.org/tracker/CVE-2015-7981

https://security-tracker.debian.org/tracker/CVE-2015-8126

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

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

https://www.debian.org/security/2015/dsa-3399

Plugin Details

Severity: High

ID: 86921

File Name: debian_DSA-3399.nasl

Version: 2.6

Type: local

Agent: unix

Published: 2015/11/19

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libpng, cpe:/o:debian:debian_linux:7.0, cpe:/o:debian:debian_linux:8.0

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/11/18

Reference Information

CVE: CVE-2015-7981, CVE-2015-8126

DSA: 3399