[ GLSA 201403-02 ] LibYAML: Arbitrary code execution

[GLSA]

Gentoo Linux Security Advisory

Title: LibYAML: Arbitrary code execution (GLSA 201403-02)
Severity: normal
Exploitable: remote
Date: March 08, 2014
Bug(s): #499920
ID: 201403-02

Synopsis

A Vulnerability in LibYAML could result in execution of arbitrary
code.


Background

LibYAML is a YAML 1.1 parser and emitter written in C.

Affected Packages

Package: dev-libs/libyaml
Vulnerable: < 0.1.5
Unaffected: >= 0.1.5
Architectures: All supported architectures


Description

A heap-based buffer overflow flaw was found in the way libyaml parsed
YAML tags.


Impact

A remote attacker could provide a specially-crafted YAML document which
when parsed by LibYAML, would cause the application to crash or,
potentially, execute arbitrary code with the privileges the user who is
running the application.


Workaround

There is no known workaround at this time.

Resolution

All LibYAML users should upgrade to the latest version: