Debian DSA-1991-1 : squid/squid3 - denial of service

Medium Nessus Plugin ID 44855

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VPR Score: 4.4


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


Two denial of service vulnerabilities have been discovered in squid and squid3, a web proxy. The Common Vulnerabilities and Exposures project identifies the following problems :

- CVE-2009-2855 Bastian Blank discovered that it is possible to cause a denial of service via a crafted auth header with certain comma delimiters.

- CVE-2010-0308 Tomas Hoger discovered that it is possible to cause a denial of service via invalid DNS header-only packets.


Upgrade the squid/squid3 packages.

For the stable distribution (lenny), these problems have been fixed in version 2.7.STABLE3-4.1lenny1 of the squid package and version 3.0.STABLE8-3+lenny3 of the squid3 package.

For the oldstable distribution (etch), these problems have been fixed in version 2.6.5-6etch5 of the squid package and version 3.0.PRE5-5+etch2 of the squid3 package.

See Also

Plugin Details

Severity: Medium

ID: 44855

File Name: debian_DSA-1991.nasl

Version: 1.10

Type: local

Agent: unix

Published: 2010/02/24

Updated: 2021/01/04

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 4.4

CVSS v2.0

Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:squid3, cpe:/o:debian:debian_linux:4.0, cpe:/o:debian:debian_linux:5.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2010/02/04

Reference Information

CVE: CVE-2009-2855, CVE-2010-0308

BID: 36091, 37522

DSA: 1991

CWE: 20