From: Secunia Security Advisories (sec-advsecunia.com)
Date: Thu May 08 2003 - 05:45:23 CDT

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TITLE:
Debian fuzz Privilege Escalation Vulnerability

READ ONLINE:
http://www.secunia.com/advisories/8744/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

OPERATING SYSTEM:
Debian GNU/Linux unstable alias sid
Debian GNU/Linux 3.0

DESCRIPTION:
Debian has reported a vulnerability in fuzz, which can be exploited
by malicious, local users to gain the privileges of other users on a
vulnerable system.

The vulnerability is caused due to creation of insecure temporary
files. This can be exploited via a symlink attack to gain privileges
of a user running fuzz.

NOTE: The vulnerability cannot be exploited to gain root privileges,
as root is not allowed to run the program.

SOLUTION:
Updated packages:

-- Debian GNU/Linux 3.0 alias woody --

Source archives:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1.dsc
Size/MD5 checksum: 577 bf6dd207fa0508cca822683910fc328e
http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1.diff.gz
Size/MD5 checksum: 2647 6d436f88438120335564a751c8e6c7bb
http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6.orig.tar.gz
Size/MD5 checksum: 54431 8c8e7c49729e0a98c0414faac7778ec7

Alpha architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_alpha.deb
Size/MD5 checksum: 22184 98ac95ea9cca956ec342f8b18bf0d8b6

ARM architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_arm.deb
Size/MD5 checksum: 20046 420a2c257d93039a2e27ae18b0c4548d

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_i386.deb
Size/MD5 checksum: 19394 dd636a58bc57c1f4adb902e83e60ca83

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_ia64.deb
Size/MD5 checksum: 24754 a226c2092bae626c5767b7a06b75b51e

HP Precision architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_hppa.deb
Size/MD5 checksum: 21346 ad651af91af27c4a8199d78d78b9bfab

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_m68k.deb
Size/MD5 checksum: 18434 3985be6572a58d6b0fc6f13e856d3843

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_mips.deb
Size/MD5 checksum: 18766 87a801099dca5fb86b1280ab61325e60

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_mipsel.deb
Size/MD5 checksum: 18786 aa1e18177aa68d5cde99b1cebbd0e521

PowerPC architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_powerpc.deb
Size/MD5 checksum: 19206 6028b01def9fdf47184c2767d51b48d8

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_s390.deb
Size/MD5 checksum: 19950 6724a5800094221fce7ed2ded3f1912b

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/f/fuzz/fuzz_0.6-6woody1_sparc.deb
Size/MD5 checksum: 20624 38acf83ac371742c301c6b26f97c77b5

-- Debian GNU/Linux unstable alias sid --

The vulnerability will reportedly be fixed soon.

REPORTED BY / CREDITS:
Joey Hess

ORIGINAL ADVISORY:
http://www.debian.org/security/2003/dsa-302

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