CVE-2011-2501
MEDIUM severity · CVSS 6.5 · Out-of-bounds read
6.5CVSS MEDIUM
Summary
The png_format_buffer function in pngerror.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 allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)3%
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. 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=65e6d5a34f49acdb362a0625a706c6b914e670af
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062720.htmlAdvisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.htmlAdvisory
- http://secunia.com/advisories/45046
- http://secunia.com/advisories/45289
- http://secunia.com/advisories/45405
- http://secunia.com/advisories/45415
- http://secunia.com/advisories/45460