GLSA-200804-27 : SILC: Multiple vulnerabilities

High Nessus Plugin ID 32073


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


The remote host is affected by the vulnerability described in GLSA-200804-27 (SILC: Multiple vulnerabilities)

Nathan G. Grennan reported a boundary error in SILC Toolkit within the silc_fingerprint() function in the file lib/silcutil/silcutil.c when passing overly long data, resulting in a stack-based buffer overflow (CVE-2008-1227).
A vulnerability has been reported in SILC Server which is caused due to an error in the handling of 'NEW_CLIENT' packets that do not contain a nickname (CVE-2008-1429).
Ariel Waissbein, Pedro Varangot, Martin Mizrahi, Oren Isacson, Carlos Garcia, and Ivan Arce of Core Security Technologies reported that SILC Client, Server, and Toolkit contain a vulnerability in the silc_pkcs1_decode() function in the silccrypt library (silcpkcs1.c), resulting in an integer underflow, signedness error, and a buffer overflow (CVE-2008-1552).
Impact :

A remote attacker could exploit these vulnerabilities to cause a Denial of Service or execute arbitrary code with the privileges of the user running the application.
Workaround :

There is no known workaround at this time.


All SILC Toolkit users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-im/silc-toolkit-1.1.7' All SILC Client users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-im/silc-client-1.1.4' All SILC Server users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-im/silc-server-1.1.2'

See Also

Plugin Details

Severity: High

ID: 32073

File Name: gentoo_GLSA-200804-27.nasl

Version: $Revision: 1.14 $

Type: local

Published: 2008/04/28

Modified: 2016/11/11

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:silc-client, p-cpe:/a:gentoo:linux:silc-server, p-cpe:/a:gentoo:linux:silc-toolkit, cpe:/o:gentoo:linux

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

Patch Publication Date: 2008/04/24

Reference Information

CVE: CVE-2008-1227, CVE-2008-1429, CVE-2008-1552

OSVDB: 42738, 43741, 43762

GLSA: 200804-27

CWE: 119, 189