Red Hat Customer Portal

Skip to main content


Public Date:
720607: CVE-2011-2690 libpng: buffer overwrite in png_rgb_to_gray

The MITRE CVE dictionary describes this issue as:

Buffer overflow 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, when used by an application that calls the png_rgb_to_gray function but not the png_set_expand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG image.

Find out more about CVE-2011-2690 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5.1
Base Metrics AV:N/AC:H/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity High
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (libpng) RHSA-2011:1104 2011-07-28
Red Hat Enterprise Linux 6 (libpng) RHSA-2011:1105 2011-07-28

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 libpng10 Not affected
Red Hat Enterprise Linux 4 libpng Not affected

Last Modified