In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with a double "To" header and an empty "To" tag causes a segmentation fault and crash
Published Jul 31, 2018
9.8
CRITICALCVSS 3.0
EPSS 29.30%
Description
In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with a double "To" header and an empty "To" tag causes a segmentation fault and crash. The reason is missing input validation in the "build_res_buf_from_sip_req" core function. This could result in denial of service and potentially the execution of arbitrary code.
Affected products
No data.
Configuration 1
- 8.0
- 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:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/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 | 29.30% (0.29303) | 98.13th | v5 (v2026.06.15) |
| Sep 22, 2026 | 29.30% (0.29303) | 98.09th | v5 (v2026.06.15) |
| Sep 21, 2026 | 24.09% (0.24095) | 97.79th | v5 (v2026.06.15) |
| Sep 6, 2026 | 29.30% (0.29303) | 98.05th | v5 (v2026.06.15) |
| Sep 5, 2026 | 24.09% (0.24095) | 97.74th | v5 (v2026.06.15) |
| Aug 30, 2026 | 29.30% (0.29303) | 98.04th | v5 (v2026.06.15) |
| Aug 28, 2026 | 24.09% (0.24095) | 97.72th | v5 (v2026.06.15) |
| Aug 24, 2026 | 29.30% (0.29303) | 98.03th | v5 (v2026.06.15) |
| Aug 23, 2026 | 24.09% (0.24095) | 97.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 29.30% (0.29303) | 97.92th | v5 (v2026.06.15) |
| May 30, 2026 | 2.75% (0.02746) | 86.25th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.74% (0.01741) | 80.83th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.50% (0.04498) | 81.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.59% (0.01595) | 80.40th | v4 (v2025.03.14) |
| Dec 17, 2024 | 32.42% (0.32423) | 97.03th | v3 (v2023.03.01) |
| Jul 10, 2024 | 62.59% (0.62592) | 97.87th | v3 (v2023.03.01) |
| Jun 9, 2024 | 74.70% (0.74696) | 98.15th | v3 (v2023.03.01) |
| Jan 31, 2024 | 83.21% (0.83213) | 98.19th | v3 (v2023.03.01) |
| Dec 22, 2023 | 86.26% (0.86261) | 98.30th | v3 (v2023.03.01) |
| Jul 25, 2023 | 87.48% (0.87480) | 98.17th | v3 (v2023.03.01) |
| Mar 16, 2023 | 87.42% (0.87422) | 98.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 89.59% (0.89595) | 98.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.40% (0.02398) | 81.51th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.40% (0.02398) | 79.76th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.40% (0.02398) | 58.39th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.81% (0.01811) | 35.12th | v1 |
| Jan 6, 2022 | 1.81% (0.01811) | 34.42th | v1 |
| Sep 1, 2021 | 1.81% (0.01811) | 74.42th | v1 |
| Apr 14, 2021 | 1.81% (0.01811) | 0.00th | v1 |
References (3)
- https://lists.debian.org/debian-lts-announce/2018/08/msg00018.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://skalatan.de/blog/advisory-hw-2018-05 x_refsource_MISCExploitPatchThird Party Advisory
- https://www.debian.org/security/2018/dsa-4267 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/08/msg00018.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://skalatan.de/blog/advisory-hw-2018-05 | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4267 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.