CVE-2011-1175
MEDIUM · CVSS 5.0EPSS 2.7%EU EUVD
tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by establishing many short TCP sessions to services that use a certain TLS API.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- EPSS score
- 2.7% (86th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1185)
- Published
- March 31, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1185 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
- digium / asterisk
and 44 more…
References
- http://downloads.asterisk.org/pub/security/AST-2011-004.html(Patch, Vendor Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html(Patch)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html
- http://openwall.com/lists/oss-security/2011/03/17/5
- http://openwall.com/lists/oss-security/2011/03/21/12(Patch)
- http://securitytracker.com/id?1025224
- http://www.debian.org/security/2011/dsa-2225
- http://www.securityfocus.com/bid/46898
- http://www.vupen.com/english/advisories/2011/0686(Vendor Advisory)
- http://www.vupen.com/english/advisories/2011/0790(Vendor Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=688678
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66140
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain