Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Digium | Asterisk | 1.4.0 |
| Digium | Asterisknow | 1.5 |
| Digium | S800I | All versions |
Related Weaknesses (CWE)
References
- http://downloads.asterisk.org/pub/security/AST-2011-002.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.htmlPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.htmlPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055634.htmlPatch
- http://secunia.com/advisories/43429Vendor Advisory
- http://secunia.com/advisories/43702Vendor Advisory
- http://www.debian.org/security/2011/dsa-2225
- http://www.openwall.com/lists/oss-security/2011/03/11/2
- http://www.openwall.com/lists/oss-security/2011/03/11/8
- http://www.securityfocus.com/bid/46474
- http://www.securitytracker.com/id?1025101
- http://www.vupen.com/english/advisories/2011/0635Vendor Advisory
- http://downloads.asterisk.org/pub/security/AST-2011-002.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.htmlPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.htmlPatch
FAQ
What is CVE-2011-1147?
CVE-2011-1147 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 1.6.1.2...
How severe is CVE-2011-1147?
CVE-2011-1147 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1147?
Check the references section above for vendor advisories and patch information. Affected products include: Digium Asterisk, Digium Asterisknow, Digium S800I.