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Netsikker nu! 2008
 
Debian debian-goodies Command Execution Vulnerability
Secunia Advisory: SA26675
Release Date: 2007-09-06
Last Update: 2008-03-25
Popularity: 6,905 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Patch

OS:Debian GNU/Linux 3.1
Debian GNU/Linux 4.0
Debian GNU/Linux unstable alias sid

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CVE reference:CVE-2007-3912


Description:
Thomas de Grenier de Latour has discovered a vulnerability in the debian-goodies package for Debian Linux, which can be exploited by malicious, local users to perform actions with escalated privileges.

The vulnerability is caused due to an input validation error within the "checkrestart" script when reading the process list. This can be exploited to execute commands with "root" privileges by invoking a program with a specially crafted file name and an administrative user executes "checkrestart".

The vulnerability is confirmed in version 0.27 included in Debian stable and reported in 0.33. Other versions may also be affected.

Solution:
Apply updated packages.

-- Debian GNU/Linux 3.1 alias sarge --

Source archives:

http://security.debian.org/pool/updat...ies/debian-goodies_0.23+sarge1.tar.gz
Size/MD5 checksum: 11779 e0834e7e962fabc65362a60c73362585
http://security.debian.org/pool/updat...oodies/debian-goodies_0.23+sarge1.dsc
Size/MD5 checksum: 819 37eb124fef7c9897ea41ec861ec740ff

Architecture independent packages:

http://security.debian.org/pool/updat...es/debian-goodies_0.23+sarge1_all.deb
Size/MD5 checksum: 22488 c8bc8eab12c7e3f29e53f4172ee837a4

-- Debian GNU/Linux 4.0 alias etch --

Source archives:

http://security.debian.org/pool/updat...goodies/debian-goodies_0.27+etch1.dsc
Size/MD5 checksum: 836 8653d033f9e6b9f0949fab2cc1813970
http://security.debian.org/pool/updat...dies/debian-goodies_0.27+etch1.tar.gz
Size/MD5 checksum: 28708 089ff8f154eb3fe4bc47dd85f1581a65

Architecture independent packages:

http://security.debian.org/pool/updat...ies/debian-goodies_0.27+etch1_all.deb
Size/MD5 checksum: 36868 2739973911e8b0d9ec12559507f6a708

-- Debian GNU/Linux unstable alias sid --

Fixed in version 0.34.

Provided and/or discovered by:
Thomas de Grenier de Latour

Changelog:
2008-03-25: Updated "Solution" section. Added link to "Original Advisory" section.

Original Advisory:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=440411
http://www.debian.org/security/2008/dsa-1527


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