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PECL APC: Buffer Overflow


1.  Gentoo Linux Security Advisory

Version Information

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


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

2.  Impact Information


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


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


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


There is no known workaround at this time.


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


Page updated April 09, 2008

Summary: This is a Gentoo Linux Security Advisory

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