SB2012072532 - Slackware Linux update for libpng
Published: July 25, 2012 Updated: May 6, 2017
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2011-3045)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Integer signedness error in the png_inflate function in pngrutil.c in libpng before 1.4.10beta01, as used in Google Chrome before 17.0.963.83 and other products, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PNG file, a different vulnerability than CVE-2011-3026.
2) Heap-based buffer overflow (CVE-ID: CVE-2011-3048)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in The png_set_text_2 function in pngset.c in libpng 1.0.x before 1.0.59, 1.2.x before 1.2.49, 1.4.x before 1.4.11, and 1.5.x before 1.5.10. A remote attacker can use a crafted text chunk in a PNG image file to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-3386)
The vulnerability allows a local non-authenticated attacker to read and manipulate data.
The "make distcheck" rule in GNU Automake before 1.11.6 and 1.12.x before 1.12.2 grants world-writable permissions to the extraction directory, which introduces a race condition that allows local users to execute arbitrary code via unspecified vectors.
Remediation
Install update from vendor's website.