SB2014050302 - Gentoo update for WeeChat

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2012-5534)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The hook_process function in the plugin API for WeeChat 0.3.0 through 0.3.9.1 allows remote attackers to execute arbitrary commands via shell metacharacters in a command from a plugin, related to "shell expansion."

2) Heap-based buffer overflow (CVE-ID: CVE-2012-5854)

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 WeeChat 0.3.6 through 0.3.9. A remote attacker can use crafted IRC colors that are not properly decoded. 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

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201405-03