Buffer overflow in the unpacksms16 function in apps/app_sms.c in Asterisk Open Source 1.8.x before 1.8.24.1, 10.x before 10.12.4, and 11.x before 11.6.1; Asterisk with Digiumphones 10.x-digiumphones before 10.12.4-digiumphones; and Certified Asterisk 1.8.x before 1.8.15-cert4 and 11.x before 11.2-cert3 allows remote attackers to cause a denial of service (daemon crash) via a 16-bit SMS message with an odd number of bytes, which triggers an infinite loop.
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://www.mandriva.com/security/advisories?name=MDVSA-2013:300 | vendor advisory |
| http://archives.neohapsis.com/archives/bugtraq/2013-12/0089.html | mailing list |
| https://issues.asterisk.org/jira/browse/ASTERISK-22590 | patch exploit |
| http://secunia.com/advisories/56294 | third party advisory |
| http://downloads.asterisk.org/pub/security/AST-2013-006.html | patch vendor advisory |
| http://www.securitytracker.com/id/1029499 | vdb entry |
| http://osvdb.org/101100 | vdb entry |
| http://www.debian.org/security/2014/dsa-2835 | vendor advisory |
| http://www.securityfocus.com/bid/64364 | vdb entry |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/89825 | vdb entry |