Subversion: Remote execution of arbitrary code

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200908-05 / subversion
Release Date	August 18, 2009
Latest Revision	August 18, 2009: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-util/subversion	< 1.6.4	>= 1.6.4	All supported architectures

Related bugreports: #280494

Synopsis

Multiple integer overflows, leading to heap-based buffer overflows in the Subversion client and server might allow remote attackers to execute arbitrary code.

2. Impact Information

Background

Subversion is a versioning system designed to be a replacement for CVS.

Description

Matt Lewis of Google reported multiple integer overflows in the libsvn_delta library, possibly leading to heap-based buffer overflows.

Impact

A remote attacker with commit access could exploit this vulnerability by sending a specially crafted commit to a Subversion server, or a remote attacker could entice a user to check out or update a repository from a malicious Subversion server, possibly resulting in the execution of arbitrary code with the privileges of the user running the server or client.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Subversion users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/subversion-1.6.4"

4. References

CVE-2009-2411

Updated August 18, 2009

Summary: This is a Gentoo Linux Security Advisory

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