libpng png_set_text_2() code execution

libpng-pngsettext2-code-execution (74494) The risk level is classified as HighHigh Risk

Description:

libpng could allow a remote attacker to execute arbitrary code on the system, caused by an error in the png_set_text_2() function. By persuading a victim to open a specially-crafted Portable Network Graphics (PNG) image file, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of libpng (1.5.10, 1.4.11, 1.2.49, or 1.0.59 or later), available from the libpng Web site. See References.

References:

  • Apple Article: HT5501: About the security content of OS X Mountain Lion v10.8.2, OS X Lion v10.7.5 and Security Update 2012-004.
  • Apple Article: HT5503: About the security content of iOS 6.
  • libpng Web Site: Libpng 1.5.10 - March 29, 2012.
  • Oracle Security Blog, Mar 13, 2013: Multiple vulnerabilities in libpng.
  • BID-52830: libpng 'png_set_text_2()' Function Memory Corruption Vulnerability
  • CVE-2011-3048: 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 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted text chunk in a PNG image file, which triggers a memory allocation failure that is not properly handled, leading to a heap-based buffer overflow.
  • DSA-2446: libpng -- incorrect memory handling
  • OSVDB ID: 80822: libpng pngset.c png_set_text_2() Function Text Chunk PNG File Handling Memory Corruption
  • RHSA-2012-0523: Moderate: libpng security update
  • SA48587: libpng "png_set_text_2()" Memory Corruption Vulnerability
  • SA50586: Apple iOS Multiple Vulnerabilities
  • SA52604: Oracle Solaris libpng Two Vulnerabilities

Platforms Affected:

  • Apple iOS 5 iPad
  • Apple iOS 5 iPhone
  • Apple iOS 5 iPod touch
  • Apple Mac OS X 10.6
  • Apple Mac OS X Server 10.6
  • libpng libpng 1.2.4
  • libpng libpng 1.4.10
  • libpng libpng 1.5
  • libpng libpng 1.5.4
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux HPC Node 6
  • Sun Solaris 10

Reported:

Mar 29, 2012

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