An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and older, and 13.18-cert1 and older
Published Dec 23, 2017
7.5
HIGHCVSS 3.0
EPSS 75.35%
Description
An issue was discovered in Asterisk 13.18.4 and older, 14.7.4 and older, 15.1.4 and older, and 13.18-cert1 and older. A select set of SIP messages create a dialog in Asterisk. Those SIP messages must contain a contact header. For those messages, if the header was not present and the PJSIP channel driver was used, Asterisk would crash. The severity of this vulnerability is somewhat mitigated if authentication is enabled. If authentication is enabled, a user would have to first be authorized before reaching the crash point.
Affected products
No data.
Configuration 4
- 13.1.0
- 13.1.0
- 13.1.0
- 13.8
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 75.35% (0.75351) | 99.50th | v5 (v2026.06.15) |
| Sep 22, 2026 | 75.35% (0.75351) | 99.49th | v5 (v2026.06.15) |
| Sep 21, 2026 | 65.83% (0.65833) | 99.26th | v5 (v2026.06.15) |
| Sep 6, 2026 | 75.35% (0.75351) | 99.48th | v5 (v2026.06.15) |
| Sep 5, 2026 | 65.83% (0.65833) | 99.24th | v5 (v2026.06.15) |
| Aug 30, 2026 | 75.35% (0.75351) | 99.48th | v5 (v2026.06.15) |
| Aug 28, 2026 | 65.83% (0.65833) | 99.24th | v5 (v2026.06.15) |
| Aug 24, 2026 | 75.35% (0.75351) | 99.47th | v5 (v2026.06.15) |
| Aug 23, 2026 | 65.83% (0.65833) | 99.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 75.35% (0.75351) | 99.45th | v5 (v2026.06.15) |
| Apr 5, 2026 | 29.96% (0.29958) | 96.63th | v4 (v2025.03.14) |
| Oct 21, 2025 | 67.46% (0.67457) | 98.49th | v4 (v2025.03.14) |
| Mar 30, 2025 | 72.18% (0.72176) | 98.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 76.32% (0.76317) | 98.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 72.75% (0.72749) | 98.69th | v4 (v2025.03.14) |
| Dec 17, 2024 | 91.76% (0.91760) | 99.16th | v3 (v2023.03.01) |
| Aug 11, 2023 | 92.87% (0.92868) | 98.64th | v3 (v2023.03.01) |
| Jun 24, 2023 | 93.85% (0.93850) | 98.72th | v3 (v2023.03.01) |
| May 15, 2023 | 94.31% (0.94313) | 98.75th | v3 (v2023.03.01) |
| Apr 2, 2023 | 94.94% (0.94942) | 98.82th | v3 (v2023.03.01) |
| Mar 7, 2023 | 95.48% (0.95476) | 98.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.05% (0.02051) | 79.42th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.05% (0.02051) | 77.60th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.05% (0.02051) | 56.48th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://downloads.asterisk.org/pub/security/AST-2017-014.html x_refsource_CONFIRMVendor Advisory
- http://www.securitytracker.com/id/1040056 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://issues.asterisk.org/jira/browse/ASTERISK-27480 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://security.gentoo.org/glsa/201811-11 vendor-advisoryx_refsource_GENTOO
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2017-014.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securitytracker.com/id/1040056 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://issues.asterisk.org/jira/browse/ASTERISK-27480 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://security.gentoo.org/glsa/201811-11 | vendor-advisoryx_refsource_GENTOO |
Change history (0)
No recorded changes yet.