Chicken: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200805-11 / chicken
Release Date	May 12, 2008
Latest Revision	May 12, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-scheme/chicken	< 3.1.0	>= 3.1.0	All supported architectures

Related bugreports: #198979

Synopsis

Multiple vulnerabilities in Chicken could result in the execution of arbitrary code.

2. Impact Information

Background

Chicken is a Scheme interpreter and native Scheme to C compiler.

Description

Chicken includes a copy of PCRE which is vulnerable to multiple buffer overflows and memory corruption vulnerabilities (GLSA 200711-30).

Impact

An attacker could entice a user to process specially crafted regular expressions with Chicken, which could possibly lead to the execution of arbitrary code, a Denial of Service or the disclosure of sensitive information.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Chicken users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-scheme/chicken-3.1.0"

4. References

GLSA 200711-30

Page updated May 12, 2008

Summary: This is a Gentoo Linux Security Advisory

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