Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libpng | Libpng | >= 1.0.0, < 1.0.55 |
| Fedoraproject | Fedora | 14 |
| Debian | Debian Linux | 5.0 |
| Canonical | Ubuntu Linux | 8.04 |
Related Weaknesses (CWE)
References
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlMailing ListThird Party Advisory
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.htmlMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/45046Broken Link
- http://secunia.com/advisories/45405Broken Link
- http://secunia.com/advisories/45415Broken Link
- http://secunia.com/advisories/45445Broken Link
- http://secunia.com/advisories/45460Broken Link
- http://secunia.com/advisories/45461Broken Link
- http://secunia.com/advisories/45492Broken Link
- http://secunia.com/advisories/49660Broken Link
- http://security.gentoo.org/glsa/glsa-201206-15.xmlThird Party Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80ExploitIssue TrackingThird Party Advisory
- http://support.apple.com/kb/HT5002Third Party Advisory
FAQ
What is CVE-2011-2692?
CVE-2011-2692 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 rem...
How severe is CVE-2011-2692?
CVE-2011-2692 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2692?
Check the references section above for vendor advisories and patch information. Affected products include: Libpng Libpng, Fedoraproject Fedora, Debian Debian Linux, Canonical Ubuntu Linux.