GLSA 200405-13: neon heap-based buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	neon heap-based buffer overflow
Date:	05/20/2004
Bugs:	#51490
ID:	200405-13

Synopsis

A vulnerability potentially allowing remote execution of arbitrary code has been discovered in the neon library.

Background

neon provides an HTTP and WebDAV client library.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/neon	<= 0.24.5	>= 0.24.6	All supported architectures

Description

Stefan Esser discovered a vulnerability in the code of the neon library : if a malicious date string is passed to the ne_rfc1036_parse() function, it can trigger a string overflow into static heap variables.

Impact

Depending on the application linked against libneon and when connected to a malicious WebDAV server, this vulnerability could allow execution of arbitrary code with the rights of the user running that application.

Workaround

There is no known workaround at this time. All users are advised to upgrade to the latest available version of neon.

Resolution

All users of neon should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=net-misc/neon-0.24.6"
    # emerge ">=net-misc/neon-0.24.6"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200405-13.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.