GLSA 200704-20: NAS: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	NAS: Multiple vulnerabilities
Date:	04/23/2007
Bugs:	#171428
ID:	200704-20

Synopsis

The Network Audio System is vulnerable to a buffer overflow that could result in the execution of arbitrary code with root privileges.

Background

NAS is a network transparent, client/server audio transport system.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/nas	< 1.8b	>= 1.8b	All supported architectures

Description

Luigi Auriemma has discovered multiple vulnerabilities in NAS, some of which include a buffer overflow in the function accept_att_local(), an integer overflow in the function ProcAuWriteElement(), and a null pointer error in the function ReadRequestFromClient().

Impact

An attacker having access to the NAS daemon could send an overly long slave name to the server, leading to the execution of arbitrary code with root privileges. A remote attacker could also send a specially crafted packet containing an invalid client ID, which would crash the server and result in a Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All NAS users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/nas-1.8b"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200704-20.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.