CVE-2011-2692
HIGH severity · CVSS 8.8 · Memory corruption
8.8CVSS HIGH
Summary
The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlAdvisory
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.htmlAdvisory
- http://secunia.com/advisories/45046
- http://secunia.com/advisories/45405
- http://secunia.com/advisories/45415
- http://secunia.com/advisories/45445