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GLSA-200409-04 : Squid: Denial of service when using NTLM authentication

medium Nessus Plugin ID 14651

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200409-04 (Squid: Denial of service when using NTLM authentication)

 Squid 2.5.x versions contain a bug in the functions ntlm_fetch_string() and ntlm_get_string() which lack checking the int32_t offset 'o' for negative values.
 Impact :

 A remote attacker could cause a denial of service situation by sending certain malformed NTLMSSP packets if NTLM authentication is enabled.
 Workaround :

 Disable NTLM authentication by removing any 'auth_param ntlm program ...' directives from squid.conf or use ntlm_auth from Samba-3.x.

Solution

All Squid users should upgrade to the latest stable version:
 # emerge sync # emerge -pv '>=net-www/squid-2.5.6-r2' # emerge '>=net-www/squid-2.5.6-r2'

See Also

http://www.nessus.org/u?b945f310

https://security.gentoo.org/glsa/200409-04

Plugin Details

Severity: Medium

ID: 14651

File Name: gentoo_GLSA-200409-04.nasl

Version: 1.17

Type: local

Published: 9/3/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:squid, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 9/2/2004

Vulnerability Publication Date: 9/2/2004

Reference Information

CVE: CVE-2004-0832

GLSA: 200409-04