Gentoo: 201301-02 High Severity: HAProxy Arbitrary Code Execution
gentoo
January 9, 2013
A buffer overflow in HAProxy may allow execution of arbitrary code.
Summary
A boundary error in HAProxy could cause a buffer overflow when header rewriting is enabled and the configuration sets global.tune.bufsize to a value greater than the default (16384 bytes).
Topics Covered
Resolution
All HAProxy users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-1.4.21"
References
[ 1 ] CVE-2012-2942 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2942
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201301-02
style>.gentoo_availability{display:block;}
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: High
Title: HAProxy: Arbitrary code execution
Date: January 08, 2013
Bugs: #417079
ID: 201301-02
Topics Covered
Background
HAProxy is a TCP/HTTP reverse proxy for high availability environments.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-proxy/haproxy < 1.4.21 >= 1.4.21
Impact
=====
A remote attacker could possibly execute arbitrary code with the
privileges of the process or cause a Denial of Service condition.
Workaround
There is no known workaround at this time.
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