PECL APC: Buffer Overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200804-07 / pecl-apc
Release Date	April 09, 2008
Latest Revision	April 09, 2008: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-php5/pecl-apc	< 3.0.16-r1	>= 3.0.16-r1	All supported architectures

Related bugreports: #214576

Synopsis

A buffer overflow vulnerability in PECL APC might allow for the remote execution of arbitrary code.

2. Impact Information

Background

PECL Alternative PHP Cache (PECL APC) is a free, open, and robust framework for caching and optimizing PHP intermediate code.

Description

Daniel Papasian discovered a stack-based buffer overflow in the apc_search_paths() function in the file apc.c when processing long filenames.

Impact

A remote attacker could exploit this vulnerability to execute arbitrary code in PHP applications that pass user-controlled input to the include() function.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All PECL APC users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php5/pecl-apc-3.0.16-r1"

4. References

CVE-2008-1488

Updated April 09, 2008

Summary: This is a Gentoo Linux Security Advisory

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