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CVE-2011-2665
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of…
Medium5.0EPSS 4.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a SIP packet with a Contact header that lacks a < (less than) character.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 4.0% · top 9.5% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- http://downloads.asterisk.org/pub/security/AST-2011-009.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 45239 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2276 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- FEDORA-2011-8914 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://downloads.asterisk.org/pub/security/AST-2011-009-1.8.diff (opens in a new tab)x_refsource_CONFIRMx_transferred
- 45048 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 45201 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_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)
Record last updated .