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


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Wed Dec 15, 2004 11:13 am    Post subject: [ GLSA 200412-09 ] ncpfs: Buffer overflow in ncplogin and nc Reply with quote

Gentoo Linux Security Advisory

Title: ncpfs: Buffer overflow in ncplogin and ncpmap (GLSA 200412-09)
Severity: high
Exploitable: local
Date: December 15, 2004
Bug(s): #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: net-fs/ncpfs
Vulnerable: < 2.2.5
Unaffected: >= 2.2.5
Architectures: 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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-fs/ncpfs-2.2.5"


References

Full Disclosure Advisory
CAN-2004-1079


Last edited by GLSA on Sun May 07, 2006 4:54 pm; edited 1 time in total
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