GLSA 200412-09: ncpfs: Buffer overflow in ncplogin and ncpmap

http://security.gentoo.org/

Severity:	high
Title:	ncpfs: Buffer overflow in ncplogin and ncpmap
Date:	12/15/2004
Bugs:	#72820
ID:	200412-09

Synopsis

ncpfs is vulnerable to a buffer overflow that could lead to local execution of arbitrary code with elevated privileges.

Background

ncpfs is a NCP protocol network filesystem that allows access to Netware services, for example to mount volumes of NetWare servers or print to NetWare print queues.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-fs/ncpfs	< 2.2.5	>= 2.2.5	All supported architectures

Description

Karol Wiesek discovered a buffer overflow in the handling of the '-T' option in the ncplogin and ncpmap utilities, which are both installed as SUID root by default.

Impact

A local attacker could trigger the buffer overflow by calling one of these utilities with a carefully crafted command line, potentially resulting in execution of arbitrary code with root privileges.

Workaround

There is no known workaround at this time.

Resolution

All ncpfs users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-fs/ncpfs-2.2.5"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200412-09.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.