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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 12 days later
· 12 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 3.5% · top 11% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (12)
- 43702 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 46474 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-2225 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 43429 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2011-2438 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- ADV-2011-0635 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- [oss-security] 20110311 CVE Request -- Asterisk AST-2011-002 / Multiple array overflow and crash vulnerabilities in UDPTL code (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2011-2360 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2011-2558 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 1025101 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- [oss-security] 20110311 Re: CVE Request -- Asterisk AST-2011-002 / Multiple array overflow and crash vulnerabilities in UDPTL code (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://downloads.asterisk.org/pub/security/AST-2011-002.html (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1147)Record last updated .