---------------------------------------------------------------------- We are millions! Join us to protect all Pc's Worldwide. Download the new Secunia PSI 3.0 available in 5 languages and share it with your friends: http://secunia.com/psi ---------------------------------------------------------------------- TITLE: Kerberos KDC Two Memory Corruption Vulnerabilities SECUNIA ADVISORY ID: SA50041 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/50041/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=50041 RELEASE DATE: 2012-08-01 DISCUSS ADVISORY: http://secunia.com/advisories/50041/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/50041/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=50041 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Two vulnerabilities have been reported in Kerberos, which can be exploited by malicious people to potentially compromise a vulnerable system. 1) An error within the "kdc_handle_protected_negotiation()" function (src/kdc/kdc_util.c) when creating a checksum does not properly verify the key type and can be exploited to free an uninitialized pointer via a specially crafted AS-REQ. This vulnerability is reported in krb5-1.8 and later only. 2) An uninitialized pointer dereference error within the "finish_process_as_req()" function (src/kdc/do_as_req.c) can be exploited to corrupt the memory by sending a specially crafted AS-REQ. This vulnerability is reported in krb5-1.10 and later only. Successful exploitation of these vulnerabilities may allow execution of arbitrary code. SOLUTION: Apply the patch (fixes are scheduled for the upcoming release of krb5-1.10.3 and krb5-1.9.5). Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ PROVIDED AND/OR DISCOVERED BY: The vendor credits Emmanuel Bouillon, NCI Agency. ORIGINAL ADVISORY: http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2012-001.txt OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/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 ----------------------------------------------------------------------