Buffer overflow in Digium Asterisk
CVE-2011-1147
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.035 (88.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Digium Asterisk — versions 1.4.0, 1.4.1, 1.4.2
- Digium Asterisknow — versions 1.5
- Digium S800i
Weakness classification (CWE)
References
- secunia.com/advisories/43702 (Vendor Advisory, third-party-advisory)
- www.securityfocus.com/bid/46474 (vdb-entry)
- www.debian.org/security/2011/dsa-2225 (vendor-advisory)
- secunia.com/advisories/43429 (Vendor Advisory, third-party-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2011-March/055421.html (vendor-advisory, Patch)
- www.vupen.com/english/advisories/2011/0635 (vdb-entry, Vendor Advisory)
- www.openwall.com/lists/oss-security/2011/03/11/2 (mailing-list)
- lists.fedoraproject.org/pipermail/package-announce/2011-March/055030.html (vendor-advisory, Patch)
- lists.fedoraproject.org/pipermail/package-announce/2011-March/055634.html (vendor-advisory, Patch)
- www.securitytracker.com/id (vdb-entry)