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libpng pngwutil.c NULL pointer Vulnerability

Information

Severity

Severity

Medium

Family

Family

General

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

15 years ago

Modified

Modified

4 years ago

Summary

The host has libpng installed and is prone to memory overwrite vulnerability.

Insight

Insight

Attackers can set the value of arbitrary memory location to zero via vectors involving creation of crafted PNG files with keywords, related to an implicit cast of the '\0' character constant to a NULL pointer.

Affected Software

Affected Software

libpng 1.0.41 and prior and 1.2.x to 1.2.33 on Linux.

Solution

Solution

Upgrade to libpng 1.0.42 or 1.2.34.

Common Vulnerabilities and Exposures (CVE)