SB2017011811 - Heap-based buffer overflow in GraphicsMagick

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2016-7996)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the WPG format reader in GraphicsMagick 1.3.25 and earlier. A remote attacker can use a colormap with a large number of entries. to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• http://www.debian.org/security/2016/dsa-3746
• http://www.openwall.com/lists/oss-security/2016/10/07/4
• http://www.openwall.com/lists/oss-security/2016/10/08/5
• http://www.securityfocus.com/bid/93464