Mandriva Linux Security Advisory : asterisk (MDVSA-2013:140)
High Nessus Plugin ID 66152
SynopsisThe remote Mandriva Linux host is missing one or more security updates.
DescriptionMultiple vulnerablilities was identified and fixed in asterisk :
The SIP channel driver in Asterisk Open Source 1.8.x before 184.108.40.206, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur (CVE-2013-2264).
Stack-based buffer overflow in res/res_format_attr_h264.c in Asterisk Open Source 11.x before 11.2.2 allows remote attackers to execute arbitrary code via a long sprop-parameter-sets H.264 media attribute in a SIP Session Description Protocol (SDP) header (CVE-2013-2685).
main/http.c in the HTTP server in Asterisk Open Source 1.8.x before 220.127.116.11, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones does not properly restrict Content-Length values, which allows remote attackers to conduct stack-consumption attacks and cause a denial of service (daemon crash) via a crafted HTTP POST request. NOTE: this vulnerability exists because of an incorrect fix for CVE-2012-5976 (CVE-2013-2686).
The updated packages have upgraded to the 11.2.2 version which is not vulnerable to these issues
SolutionUpdate the affected packages.