CVE-2011-4063
MEDIUM · CVSS 6.8EPSS 2.4%EU EUVD
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:S/C:N/I:N/A:C- Weakness (CWE)
- CWE-20
- EPSS score
- 2.4% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-4015)
- Published
- October 21, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-4015 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- asterisk / open source
- asterisk / open source
References
- http://downloads.digium.com/pub/security/AST-2011-012.html(Vendor Advisory)
- http://secunia.com/advisories/46420
- http://securityreason.com/securityalert/8478
- http://www.securityfocus.com/archive/1/520141/100/0/threaded
- http://www.securityfocus.com/bid/50177
- http://www.securitytracker.com/id?1026191
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70706
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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