A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2
Published Feb 22, 2018
7.5
HIGHCVSS 3.0
EPSS 66.17%
Description
A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash.
Affected products
No data.
Configuration 1
Configuration 2
- 13.18
- 13.18
Configuration 3
- ≤ 13.18
Configuration 4
- 9.0
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.
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 (41 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 66.17% (0.66167) | 99.26th | v5 (v2026.06.15) |
| Sep 22, 2026 | 57.66% (0.57662) | 99.04th | v5 (v2026.06.15) |
| Sep 21, 2026 | 42.20% (0.42203) | 98.68th | v5 (v2026.06.15) |
| Sep 6, 2026 | 57.66% (0.57662) | 99.02th | v5 (v2026.06.15) |
| Sep 5, 2026 | 42.20% (0.42203) | 98.65th | v5 (v2026.06.15) |
| Aug 30, 2026 | 57.66% (0.57662) | 99.01th | v5 (v2026.06.15) |
| Aug 28, 2026 | 42.20% (0.42203) | 98.64th | v5 (v2026.06.15) |
| Aug 24, 2026 | 57.66% (0.57662) | 99.01th | v5 (v2026.06.15) |
| Aug 23, 2026 | 42.20% (0.42203) | 98.63th | v5 (v2026.06.15) |
| Aug 3, 2026 | 57.66% (0.57662) | 98.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 58.95% (0.58949) | 98.99th | v5 (v2026.06.15) |
| Dec 28, 2025 | 65.24% (0.65243) | 98.40th | v4 (v2025.03.14) |
| Dec 27, 2025 | 62.50% (0.62500) | 98.30th | v4 (v2025.03.14) |
| Nov 21, 2025 | 65.24% (0.65243) | 98.39th | v4 (v2025.03.14) |
| Nov 18, 2025 | 66.27% (0.66271) | 98.53th | v4 (v2025.03.14) |
| Oct 28, 2025 | 65.24% (0.65243) | 98.39th | v4 (v2025.03.14) |
| Oct 27, 2025 | 62.50% (0.62500) | 98.29th | v4 (v2025.03.14) |
| Oct 1, 2025 | 65.24% (0.65243) | 98.43th | v4 (v2025.03.14) |
| Sep 16, 2025 | 62.50% (0.62500) | 98.32th | v4 (v2025.03.14) |
| Jul 30, 2025 | 64.19% (0.64192) | 98.35th | v4 (v2025.03.14) |
| May 22, 2025 | 66.84% (0.66840) | 98.42th | v4 (v2025.03.14) |
| Mar 30, 2025 | 73.19% (0.73189) | 98.71th | v4 (v2025.03.14) |
| Mar 29, 2025 | 76.12% (0.76116) | 98.59th | v4 (v2025.03.14) |
| Mar 28, 2025 | 73.19% (0.73189) | 98.71th | v4 (v2025.03.14) |
| Mar 27, 2025 | 76.12% (0.76116) | 98.83th | v4 (v2025.03.14) |
| Mar 20, 2025 | 73.19% (0.73189) | 98.75th | v4 (v2025.03.14) |
| Mar 19, 2025 | 76.12% (0.76116) | 98.85th | v4 (v2025.03.14) |
| Mar 17, 2025 | 73.19% (0.73189) | 98.71th | v4 (v2025.03.14) |
| Dec 17, 2024 | 62.44% (0.62436) | 97.98th | v3 (v2023.03.01) |
| May 28, 2024 | 78.68% (0.78677) | 98.27th | v3 (v2023.03.01) |
| Jul 15, 2023 | 80.87% (0.80874) | 97.88th | v3 (v2023.03.01) |
| Jun 2, 2023 | 82.74% (0.82736) | 97.91th | v3 (v2023.03.01) |
| Apr 10, 2023 | 85.90% (0.85896) | 97.98th | v3 (v2023.03.01) |
| Mar 22, 2023 | 87.63% (0.87635) | 98.03th | v3 (v2023.03.01) |
| Mar 7, 2023 | 88.45% (0.88449) | 98.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 26.74% (0.26743) | 97.15th | v2 (v2022.01.01) |
| Feb 4, 2022 | 26.74% (0.26743) | 95.78th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Sep 1, 2021 | 5.36% (0.05363) | 88.35th | v1 |
| Apr 14, 2021 | 5.36% (0.05363) | 0.00th | v1 |
References (5)
- http://downloads.asterisk.org/pub/security/AST-2018-004.html x_refsource_CONFIRMPatchVendor Advisory
- http://www.securityfocus.com/bid/103151 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040416 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://www.debian.org/security/2018/dsa-4320 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.exploit-db.com/exploits/44184/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2018-004.html | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.securityfocus.com/bid/103151 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040416 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://www.debian.org/security/2018/dsa-4320 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.exploit-db.com/exploits/44184/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.