Test ID:	1.3.6.1.4.1.25623.1.0.64822
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-1879-1)
Summary:	The remote host is missing an update for the Debian 'silc-client, silc-toolkit' package(s) announced via the DSA-1879-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'silc-client, silc-toolkit' package(s) announced via the DSA-1879-1 advisory. Vulnerability Insight: Several vulnerabilities have been discovered in the software suite for the SILC protocol, a network protocol designed to provide end-to-end security for conferencing services. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2008-7159 An incorrect format string in sscanf() used in the ASN1 encoder to scan an OID value could overwrite a neighbouring variable on the stack as the destination data type is smaller than the source type on 64-bit. On 64-bit architectures this could result in unexpected application behaviour or even code execution in some cases. CVE-2009-3051 Various format string vulnerabilities when handling parsed SILC messages allow an attacker to execute arbitrary code with the rights of the victim running the SILC client via crafted nick names or channel names containing format strings. CVE-2008-7160 An incorrect format string in a sscanf() call used in the HTTP server component of silcd could result in overwriting a neighbouring variable on the stack as the destination data type is smaller than the source type on 64-bit. An attacker could exploit this by using crafted Content-Length header values resulting in unexpected application behaviour or even code execution in some cases. silc-server doesn't need an update as it uses the shared library provided by silc-toolkit. silc-client/silc-toolkit in the oldstable distribution (etch) is not affected by this problem. For the stable distribution (lenny), this problem has been fixed in version 1.1.7-2+lenny1 of silc-toolkit and in version 1.1.4-1+lenny1 of silc-client. For the testing distribution (squeeze), this problem will be fixed soon. For the unstable distribution (sid), this problem has been fixed in version 1.1.10-1 of silc-toolkit and version 1.1-2 of silc-client (using libsilc from silc-toolkit since this upload). We recommend that you upgrade your silc-toolkit/silc-client packages. Affected Software/OS: 'silc-client, silc-toolkit' package(s) on Debian 5. Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2008-7159 BugTraq ID: 36192 http://www.securityfocus.com/bid/36192 Debian Security Information: DSA-1879 (Google Search) http://www.debian.org/security/2009/dsa-1879 http://www.mandriva.com/security/advisories?name=MDVSA-2009:234 http://www.openwall.com/lists/oss-security/2009/08/31/5 http://www.openwall.com/lists/oss-security/2009/09/03/5 http://secunia.com/advisories/36614 http://secunia.com/advisories/36625 SuSE Security Announcement: SUSE-SR:2009:016 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html XForce ISS Database: silctoolkit-silcasn1encoder-format-string(53477) https://exchange.xforce.ibmcloud.com/vulnerabilities/53477 Common Vulnerability Exposure (CVE) ID: CVE-2008-7160 BugTraq ID: 36194 http://www.securityfocus.com/bid/36194 Common Vulnerability Exposure (CVE) ID: CVE-2009-3051 BugTraq ID: 35940 http://www.securityfocus.com/bid/35940 http://www.mandriva.com/security/advisories?name=MDVSA-2009:235 http://secunia.com/advisories/36134 http://www.vupen.com/english/advisories/2009/2150 Common Vulnerability Exposure (CVE) ID: CVE-2009-3163 BugTraq ID: 36193 http://www.securityfocus.com/bid/36193
Copyright	Copyright (C) 2009 Greenbone AG

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