Debian DSA-2287-1 : libpng - several vulnerabilities

medium Nessus Plugin ID 55721
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Synopsis

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

Description

The PNG library libpng has been affected by several vulnerabilities.
The most critical one is the identified as CVE-2011-2690. Using this vulnerability, an attacker is able to overwrite memory with an arbitrary amount of data controlled by her via a crafted PNG image.

The other vulnerabilities are less critical and allow an attacker to cause a crash in the program (denial of service) via a crafted PNG image.

Solution

Upgrade the libpng packages.

For the oldstable distribution (lenny), this problem has been fixed in version 1.2.27-2+lenny5. Due to a technical limitation in the Debian archive processing scripts, the updated packages cannot be released in parallel with the packages for Squeeze. They will appear shortly.

For the stable distribution (squeeze), this problem has been fixed in version 1.2.44-1+squeeze1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632786

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633871

https://security-tracker.debian.org/tracker/CVE-2011-2690

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

https://www.debian.org/security/2011/dsa-2287

Plugin Details

Severity: Medium

ID: 55721

File Name: debian_DSA-2287.nasl

Version: 1.13

Type: local

Agent: unix

Published: 7/29/2011

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libpng, cpe:/o:debian:debian_linux:5.0, cpe:/o:debian:debian_linux:6.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/28/2011

Reference Information

CVE: CVE-2011-2501, CVE-2011-2690, CVE-2011-2691, CVE-2011-2692

BID: 48474, 48618, 48660

DSA: 2287