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Debian DSA-023-1 : inn2 - local tempfile vulnerabilities

medium Nessus Plugin ID 14860

Synopsis

The remote Debian host is missing a security-related update.

Description

- People at WireX have found several potential insecure uses of temporary files in programs provided by INN2.
 Some of them only lead to a vulnerability to symlink attacks if the temporary directory was set to /tmp or /var/tmp, which is the case in many installations, at least in Debian packages. An attacker could overwrite any file owned by the news system administrator, i.e.
 owned by news.news.
 - Michal Zalewski found an exploitable buffer overflow with regard to cancel messages and their verification.
 This bug did only show up if 'verifycancels' was enabled in inn.conf which is not the default and has been disrecommended by upstream.

 - Andi Kleen found a bug in INN2 that makes innd crash for two byte headers. There is a chance this can only be exploited with uucp.

Solution

Upgrade the inn2 packages immediately.

See Also

http://www.debian.org/security/2001/dsa-023

Plugin Details

Severity: Medium

ID: 14860

File Name: debian_DSA-023.nasl

Version: 1.17

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.0

CVSS v2

Risk Factor: Medium

Base Score: 4

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:inn2, cpe:/o:debian:debian_linux:2.2

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 1/26/2001

Reference Information

CVE: CVE-2001-0361

CWE: 310

DSA: 023