---------------------------------------------------------------------- Try a new way to discover vulnerabilities that ALREADY EXIST in your IT infrastructure. The Full Featured Secunia Network Software Inspector (NSI) is now available: http://secunia.com/network_software_inspector/ The Secunia NSI enables you to INSPECT, DISCOVER, and DOCUMENT vulnerabilities in more than 4,000 different Windows applications. ---------------------------------------------------------------------- TITLE: SILC Client and SILC Toolkit "NICK_CHANGE" Buffer Overflow SECUNIA ADVISORY ID: SA25939 VERIFY ADVISORY: http://secunia.com/advisories/25939/ CRITICAL: Highly critical IMPACT: DoS, System access WHERE: >From remote SOFTWARE: SILC Secure Internet Live Conferencing Client 1.x http://secunia.com/product/5645/ SILC Secure Internet Live Conferencing Toolkit 1.x http://secunia.com/product/14731/ DESCRIPTION: A vulnerability has been reported in SILC Client and SILC Toolkit, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system. The vulnerability is caused due to a boundary error within the handling of "NICK_CHANGE" notifications in lib/silcclient/client_notify.c. This can be exploited to cause a buffer overflow by changing a specially crafted nickname in a channel. The vulnerability is reported in versions prior to SILC Toolkit and SILC Client 1.1.2. SOLUTION: Update to SILC Toolkit and SILC Client 1.1.2. PROVIDED AND/OR DISCOVERED BY: Reported by the vendor. ORIGINAL ADVISORY: http://silcnet.org/docs/changelog/changes.txt ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------