Debian DSA-3443-1 : libpng - security update

High Nessus Plugin ID 87899

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-2015-8472 It was discovered that the original fix for CVE-2015-8126 was incomplete and did not detect a potential overrun by applications using png_set_PLTE directly. A remote attacker can take advantage of this flaw to cause a denial of service (application crash).

- CVE-2015-8540 Xiao Qixue and Chen Yu discovered a flaw in the png_check_keyword function. A remote attacker can potentially take advantage of this flaw to cause a denial of service (application crash).

Solution

Upgrade the libpng packages.

For the oldstable distribution (wheezy), these problems have been fixed in version 1.2.49-1+deb7u2.

For the stable distribution (jessie), these problems have been fixed in version 1.2.50-2+deb8u2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=807112

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=807694

https://security-tracker.debian.org/tracker/CVE-2015-8472

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

https://security-tracker.debian.org/tracker/CVE-2015-8540

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

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

https://www.debian.org/security/2016/dsa-3443

Plugin Details

Severity: High

ID: 87899

File Name: debian_DSA-3443.nasl

Version: 2.9

Type: local

Agent: unix

Published: 2016/01/14

Updated: 2018/11/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

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

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

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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: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: 2016/01/13

Reference Information

CVE: CVE-2015-8472, CVE-2015-8540

DSA: 3443