Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://secunia.com/advisories/43702 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/46474 | vdb entry |
| http://www.debian.org/security/2011/dsa-2225 | vendor advisory |
| http://secunia.com/advisories/43429 | third party advisory vendor advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.html | patch vendor advisory |
| http://www.vupen.com/english/advisories/2011/0635 | vdb entry vendor advisory |
| http://www.openwall.com/lists/oss-security/2011/03/11/2 | mailing list |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.html | patch vendor advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055634.html | patch vendor advisory |
| http://www.securitytracker.com/id?1025101 | vdb entry |
| http://www.openwall.com/lists/oss-security/2011/03/11/8 | mailing list |
| http://downloads.asterisk.org/pub/security/AST-2011-002.html | vendor advisory |