SB2011073002 - Slackware Linux update for libpng

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Main Vulnerability Database SB2011073002

SB2011073002 - Slackware Linux update for libpng

Published: July 30, 2011 Updated: April 24, 2025

Security Bulletin ID SB2011073002
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2004-0421)

The vulnerability allows a remote attacker to crash the application.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted PNG file, trick the victim into opening it, trigger an out-of-bounds read error and crash the application.


2) Input validation error (CVE-ID: CVE-2011-0421)

The vulnerability allows context-dependent attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (NULL pointer dereference) via an empty ZIP archive that is processed with a (1) locateName or (2) statName operation.


Remediation

Install update from vendor's website.

References