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
Published Mar 31, 2011
5.0
MEDIUMCVSS 2.0
EPSS 2.72%
Description
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.
Affected products
No data.
Configuration 1
- 1.6.1
- 1.6.1
- 1.6.1
- 1.6.1
- 1.6.1
- 1.6.1
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.0
- 1.6.1.1
- 1.6.1.2
- 1.6.1.3
- 1.6.1.4
- 1.6.1.5
- 1.6.1.5
- 1.6.1.6
- 1.6.1.7
- 1.6.1.7
- 1.6.1.8
- 1.6.1.9
- 1.6.1.10
- 1.6.1.10
- 1.6.1.10
- 1.6.1.10
- 1.6.1.11
- 1.6.1.12
- 1.6.1.12
- 1.6.1.13
- 1.6.1.13
- 1.6.1.14
- 1.6.1.15
- 1.6.1.16
- 1.6.1.17
- 1.6.1.18
- 1.6.1.18
- 1.6.1.18
- 1.6.1.19
- 1.6.1.19
- 1.6.1.19
- 1.6.1.19
- 1.6.1.20
- 1.6.1.20
- 1.6.1.20
- 1.6.1.21
- 1.6.1.22
Configuration 2
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.0
- 1.6.2.1
- 1.6.2.1
- 1.6.2.2
- 1.6.2.3
- 1.6.2.4
- 1.6.2.5
- 1.6.2.6
- 1.6.2.6
- 1.6.2.6
- 1.6.2.15
- 1.6.2.16
- 1.6.2.16
- 1.6.2.16.1
- 1.6.2.17
- 1.6.2.17
- 1.6.2.17
- 1.6.2.17
Configuration 3
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.0
- 1.8.1
- 1.8.1
- 1.8.1.1
- 1.8.1.2
- 1.8.2
- 1.8.2.1
- 1.8.2.2
- 1.8.2.3
- 1.8.3
- 1.8.3
- 1.8.3
- 1.8.3
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.72% (0.02724) | 85.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.72% (0.02724) | 84.07th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00284) | 49.79th | v4 (v2025.03.14) |
| Dec 17, 2024 | 13.70% (0.13700) | 95.60th | v3 (v2023.03.01) |
| Mar 7, 2023 | 15.04% (0.15044) | 94.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
No CWE recorded.
References (13)
- http://downloads.asterisk.org/pub/security/AST-2011-004.html x_refsource_CONFIRMPatchVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html vendor-advisoryx_refsource_FEDORAPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html vendor-advisoryx_refsource_FEDORA
- http://openwall.com/lists/oss-security/2011/03/17/5 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/03/21/12 mailing-listx_refsource_MLISTPatch
- http://securitytracker.com/id?1025224 vdb-entryx_refsource_SECTRACK
- http://www.debian.org/security/2011/dsa-2225 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/46898 vdb-entryx_refsource_BID
- http://www.vupen.com/english/advisories/2011/0686 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.vupen.com/english/advisories/2011/0790 vdb-entryx_refsource_VUPENVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=688678 x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66140 vdb-entryx_refsource_XF
Change history (0)
No recorded changes yet.