An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older
Published Dec 2, 2017
7.5
HIGHCVSS 3.0
EPSS 82.20%
Description
An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind.
Affected products
No data.
Configuration 1
- ≤ 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
- 13.13
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 (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 82.20% (0.82196) | 99.65th | v5 (v2026.06.15) |
| Sep 22, 2026 | 81.51% (0.81511) | 99.62th | v5 (v2026.06.15) |
| Sep 21, 2026 | 78.07% (0.78069) | 99.57th | v5 (v2026.06.15) |
| Sep 6, 2026 | 81.51% (0.81511) | 99.61th | v5 (v2026.06.15) |
| Sep 5, 2026 | 78.07% (0.78069) | 99.56th | v5 (v2026.06.15) |
| Aug 30, 2026 | 81.51% (0.81511) | 99.61th | v5 (v2026.06.15) |
| Aug 28, 2026 | 78.07% (0.78069) | 99.55th | v5 (v2026.06.15) |
| Aug 24, 2026 | 81.51% (0.81511) | 99.61th | v5 (v2026.06.15) |
| Aug 23, 2026 | 78.07% (0.78069) | 99.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 81.51% (0.81511) | 99.59th | v5 (v2026.06.15) |
| Jan 17, 2026 | 80.58% (0.80582) | 99.09th | v4 (v2025.03.14) |
| Dec 28, 2025 | 89.20% (0.89199) | 99.51th | v4 (v2025.03.14) |
| Dec 27, 2025 | 87.83% (0.87835) | 99.45th | v4 (v2025.03.14) |
| Oct 28, 2025 | 89.20% (0.89199) | 99.51th | v4 (v2025.03.14) |
| Oct 27, 2025 | 87.83% (0.87835) | 99.44th | v4 (v2025.03.14) |
| Jul 30, 2025 | 89.30% (0.89295) | 99.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 91.03% (0.91033) | 99.63th | v4 (v2025.03.14) |
| Dec 17, 2024 | 46.31% (0.46313) | 97.51th | v3 (v2023.03.01) |
| Jun 3, 2023 | 69.32% (0.69318) | 97.51th | v3 (v2023.03.01) |
| May 8, 2023 | 72.03% (0.72029) | 97.55th | v3 (v2023.03.01) |
| Apr 24, 2023 | 85.41% (0.85414) | 97.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 84.02% (0.84015) | 97.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 15.44% (0.15439) | 95.99th | v2 (v2022.01.01) |
| Apr 1, 2022 | 15.44% (0.15439) | 95.62th | v2 (v2022.01.01) |
| Feb 4, 2022 | 15.44% (0.15439) | 92.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 7.04% (0.07038) | 83.71th | v1 |
| Jan 6, 2022 | 7.04% (0.07038) | 83.55th | v1 |
| Sep 1, 2021 | 7.04% (0.07038) | 91.20th | v1 |
| Apr 14, 2021 | 7.04% (0.07038) | 0.00th | v1 |
References (7)
- http://downloads.digium.com/pub/security/AST-2017-013.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/102023 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039948 vdb-entryx_refsource_SECTRACK
- https://issues.asterisk.org/jira/browse/ASTERISK-27452 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00028.html mailing-listx_refsource_MLIST
- https://www.debian.org/security/2017/dsa-4076 vendor-advisoryx_refsource_DEBIAN
- https://www.exploit-db.com/exploits/43992/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://downloads.digium.com/pub/security/AST-2017-013.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/102023 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039948 | vdb-entryx_refsource_SECTRACK | |
| https://issues.asterisk.org/jira/browse/ASTERISK-27452 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://lists.debian.org/debian-lts-announce/2017/12/msg00028.html | mailing-listx_refsource_MLIST | |
| https://www.debian.org/security/2017/dsa-4076 | vendor-advisoryx_refsource_DEBIAN | |
| https://www.exploit-db.com/exploits/43992/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.