Scientific Linux Security Update : libpng on SL6.x i386/x86_64

medium Nessus Plugin ID 61101
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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

The libpng packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.

A buffer overflow flaw was found in the way libpng processed certain PNG image files. An attacker could create a specially crafted PNG image that, when opened, could cause an application using libpng to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2011-2690)

Note: The application behavior required to exploit CVE-2011-2690 is rarely used. No application shipped with Scientific Linux behaves this way, for example.

An out-of-bounds memory read flaw was found in the way libpng processed certain PNG image files. An attacker could create a specially crafted PNG image that, when opened, could cause an application using libpng to crash. (CVE-2011-2501)

An uninitialized memory read issue was found in the way libpng processed certain PNG images that use the Physical Scale (sCAL) extension. An attacker could create a specially crafted PNG image that, when opened, could cause an application using libpng to crash.
(CVE-2011-2692)

Users of libpng should upgrade to these updated packages, which upgrade libpng to version 1.2.46 to correct these issues. All running applications using libpng must be restarted for the update to take effect.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?d2a3d1a7

Plugin Details

Severity: Medium

ID: 61101

File Name: sl_20110728_libpng_on_SL6_x.nasl

Version: 1.6

Type: local

Agent: unix

Published: 8/1/2012

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 7/28/2011

Reference Information

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