GLSA 200501-44: ncpfs: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	ncpfs: Multiple vulnerabilities
Date:	01/30/2005
Bugs:	#77414
ID:	200501-44

Synopsis

The ncpfs utilities contain multiple flaws, potentially resulting in the remote execution of arbitrary code or local file access with elevated privileges.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-fs/ncpfs	< 2.2.6	>= 2.2.6	All supported architectures

Description

Erik Sjolund discovered two vulnerabilities in the programs bundled with ncpfs: there is a potentially exploitable buffer overflow in ncplogin (CAN-2005-0014), and due to a flaw in nwclient.c, utilities using the NetWare client functions insecurely access files with elevated privileges (CAN-2005-0013).

Impact

The buffer overflow might allow a malicious remote NetWare server to execute arbitrary code on the NetWare client. Furthermore, a local attacker may be able to create links and access files with elevated privileges using SUID ncpfs utilities.

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-2.2.6"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200501-44.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.