GLSA 200504-14: monkeyd: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	monkeyd: Multiple vulnerabilities
Date:	04/15/2005
Bugs:	#87916
ID:	200504-14

Synopsis

Format string and Denial of Service vulnerabilities have been discovered in the monkeyd HTTP server, potentially resulting in the execution of arbitrary code.

Background

monkeyd is a fast, efficient, small and easy to configure web server for Linux.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-servers/monkeyd	< 0.9.1	>= 0.9.1	All supported architectures

Description

Tavis Ormandy of the Gentoo Linux Security Audit Team discovered a double expansion error in monkeyd, resulting in a format string vulnerability. Ciaran McCreesh of Gentoo Linux discovered a Denial of Service vulnerability, a syntax error caused monkeyd to zero out unallocated memory should a zero byte file be requested.

Impact

The format string vulnerability could allow an attacker to send a specially crafted request to the monkeyd server, resulting in the execution of arbitrary code with the permissions of the user running monkeyd. The DoS vulnerability could allow an attacker to disrupt the operation of the web server, should a zero byte file be accessible.

Workaround

There is no known workaround at this time.

Resolution

All monkeyd users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-servers/monkeyd-0.9.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200504-14.xml

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.