VULNERABILITY INTELLIGENCE

CVE-2011-2501

CVSS score6.5 MEDIUM
EPSS probability3.48%
CISA KEVNot currently listed
Published2011-07-17
Last modified2026-06-16
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references