[ GLSA 200512-14 ] NBD Tools: Buffer overflow in NBD server

[GLSA]

Gentoo Linux Security Advisory

Title: NBD Tools: Buffer overflow in NBD server (GLSA 200512-14)
Severity: high
Exploitable: remote
Date: December 23, 2005
Bug(s): #116314
ID: 200512-14

Synopsis

The NBD server is vulnerable to a buffer overflow that may result in the execution of arbitrary code.

Background

The NBD Tools are the Network Block Device utilities allowing one to use remote block devices over a TCP/IP network. It includes a userland NBD server.

Affected Packages

Package: sys-block/nbd
Vulnerable: < 2.8.2-r1
Unaffected: >= 2.8.2-r1
Architectures: All supported architectures


Description

Kurt Fitzner discovered that the NBD server allocates a request buffer that fails to take into account the size of the reply header.

Impact

A remote attacker could send a malicious request that can result in the execution of arbitrary code with the rights of the NBD server.

Workaround

There is no known workaround at this time.

Resolution

All NBD Tools users should upgrade to the latest version: