PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter
Published Jun 2, 2017
7.5
HIGHCVSS 3.0
EPSS 3.99%
Description
PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter.
Affected products
No data.
Configuration 1
- 13.0.0
- 13.1.0
- 13.1.0
- 13.1.0
- 13.2.0
- 13.2.0
- 13.3.0
- 13.4.0
- 13.4.0
- 13.5.0
- 13.5.0
- 13.6.0
- 13.7.0
- 13.7.0
- 13.8.0
- 13.8.0
- 13.8.1
- 13.8.2
- 13.9.0
- 13.9.0
- 13.10.0
- 13.11.0
- 13.12.0
- 13.12.0
- 13.12.1
- 13.12.2
- 13.13.0
- 13.14.0
- 13.15.0
Configuration 2
- 14.0.0
- 14.0.0
- 14.0.0
- 14.0.0
- 14.1.0
- 14.2.0
- 14.2.0
- 14.2.0
- 14.2.1
- 14.3.0
- 14.4.0
Configuration 3
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
- 13.13.0
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.99% (0.03989) | 90.19th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.99% (0.03989) | 89.13th | v5 (v2026.06.15) |
| Mar 17, 2025 | 3.66% (0.03658) | 87.08th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.21% (0.01208) | 85.43th | v3 (v2023.03.01) |
| Apr 18, 2024 | 1.21% (0.01208) | 85.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.21% (0.01208) | 83.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.94% (0.01943) | 48.45th | v1 |
| Jan 6, 2022 | 1.94% (0.01943) | 47.92th | v1 |
| Sep 1, 2021 | 1.94% (0.01943) | 76.51th | v1 |
| Apr 14, 2021 | 1.94% (0.01943) | 0.00th | v1 |
References (5)
- http://downloads.asterisk.org/pub/security/AST-2017-002.txt x_refsource_CONFIRMThird Party Advisory
- http://www.debian.org/security/2017/dsa-3933 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/98572 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038529 vdb-entryx_refsource_SECTRACK
- https://bugs.debian.org/863901 x_refsource_CONFIRMMailing ListThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://downloads.asterisk.org/pub/security/AST-2017-002.txt | x_refsource_CONFIRMThird Party Advisory | |
| http://www.debian.org/security/2017/dsa-3933 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/98572 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038529 | vdb-entryx_refsource_SECTRACK | |
| https://bugs.debian.org/863901 | x_refsource_CONFIRMMailing ListThird Party Advisory |
Change history (0)
No recorded changes yet.