The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.17.x through 1.8.22.x, 1.8.23.x before 1.8.23.1, and 11.x before 11.5.1 and Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an ACK with SDP to a previously terminated channel
Published Sep 9, 2013
5.0
MEDIUMCVSS 2.0
EPSS 4.11%
Description
The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.17.x through 1.8.22.x, 1.8.23.x before 1.8.23.1, and 11.x before 11.5.1 and Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an ACK with SDP to a previously terminated channel. NOTE: some of these details are obtained from third party information.
Affected products
No data.
- 1.8.17.0
- 1.8.17.0
- 1.8.17.0
- 1.8.17.0
- 1.8.18.0
- 1.8.18.0
- 1.8.18.1
- 1.8.19.0
- 1.8.19.0
- 1.8.19.0
- 1.8.19.1
- 1.8.20.0
- 1.8.20.0
- 1.8.20.0
- 1.8.21.0
- 1.8.21.0
- 1.8.22.0
- 1.8.22.0
- 1.8.22.0
- 1.8.23.0
- 1.8.23.0
- 1.8.23.0
- 11.0.0
- 11.0.0
- 11.0.0
- 11.0.0
- 11.0.0
- 11.0.1
- 11.0.2
- 11.1.0
- 11.1.0
- 11.1.0
- 11.1.1
- 11.1.2
- 11.2.0
- 11.2.0
- 11.3.0
- 11.3.0
- 11.4.0
- 11.4.0
- 11.4.0
- 11.4.0
- 11.5.0
- 11.5.0
- 11.5.0
- 11.5.1
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 1.8.15
- 11.2.0
- 11.2.0
- 11.2.0
- 11.2.0
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 (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.11% (0.04111) | 90.46th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.11% (0.04111) | 89.43th | v5 (v2026.06.15) |
| Dec 28, 2025 | 4.10% (0.04098) | 88.24th | v4 (v2025.03.14) |
| Dec 27, 2025 | 2.91% (0.02908) | 86.00th | v4 (v2025.03.14) |
| Oct 28, 2025 | 4.10% (0.04098) | 88.08th | v4 (v2025.03.14) |
| Oct 27, 2025 | 2.91% (0.02908) | 85.88th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.10% (0.04098) | 88.17th | v4 (v2025.03.14) |
| Jul 30, 2025 | 2.91% (0.02908) | 85.84th | v4 (v2025.03.14) |
| Apr 25, 2025 | 4.10% (0.04098) | 87.94th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.88% (0.08885) | 91.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 13.64% (0.13638) | 90.40th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.88% (0.08885) | 91.93th | v4 (v2025.03.14) |
| Feb 4, 2025 | 66.00% (0.66003) | 98.12th | v3 (v2023.03.01) |
| Dec 17, 2024 | 67.82% (0.67820) | 98.13th | v3 (v2023.03.01) |
| Dec 3, 2024 | 79.73% (0.79729) | 98.41th | v3 (v2023.03.01) |
| Oct 3, 2024 | 77.92% (0.77921) | 98.29th | v3 (v2023.03.01) |
| Sep 8, 2023 | 84.26% (0.84262) | 98.04th | v3 (v2023.03.01) |
| Apr 22, 2023 | 87.11% (0.87107) | 98.05th | v3 (v2023.03.01) |
| Mar 7, 2023 | 90.03% (0.90029) | 98.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (11)
- http://archives.neohapsis.com/archives/bugtraq/2013-08/0175.html mailing-listx_refsource_BUGTRAQ
- http://downloads.asterisk.org/pub/security/AST-2013-004.html x_refsource_CONFIRMPatch
- http://osvdb.org/96691 vdb-entryx_refsource_OSVDB
- http://seclists.org/bugtraq/2013/Aug/185 mailing-listx_refsource_BUGTRAQPatch
- http://secunia.com/advisories/54534 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/54617 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2013/dsa-2749 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:223 vendor-advisoryx_refsource_MANDRIVA
- http://www.securityfocus.com/bid/62021 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1028956 vdb-entryx_refsource_SECTRACK
- https://issues.asterisk.org/jira/browse/ASTERISK-21064 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://archives.neohapsis.com/archives/bugtraq/2013-08/0175.html | mailing-listx_refsource_BUGTRAQ | |
| http://downloads.asterisk.org/pub/security/AST-2013-004.html | x_refsource_CONFIRMPatch | |
| http://osvdb.org/96691 | vdb-entryx_refsource_OSVDB | |
| http://seclists.org/bugtraq/2013/Aug/185 | mailing-listx_refsource_BUGTRAQPatch | |
| http://secunia.com/advisories/54534 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://secunia.com/advisories/54617 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.debian.org/security/2013/dsa-2749 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2013:223 | vendor-advisoryx_refsource_MANDRIVA | |
| http://www.securityfocus.com/bid/62021 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1028956 | vdb-entryx_refsource_SECTRACK | |
| https://issues.asterisk.org/jira/browse/ASTERISK-21064 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.