In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio
Published Sep 7, 2018
9.8
CRITICALCVSS 3.0
EPSS 3.58%
Description
In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) 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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.58% (0.03581) | 89.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.58% (0.03581) | 87.87th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.26% (0.00255) | 46.96th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.50% (0.00496) | 76.00th | v3 (v2023.03.01) |
| Apr 26, 2024 | 1.02% (0.01020) | 83.58th | v3 (v2023.03.01) |
| Mar 9, 2024 | 1.14% (0.01143) | 84.40th | v3 (v2023.03.01) |
| Jan 29, 2024 | 1.61% (0.01611) | 86.13th | v3 (v2023.03.01) |
| Sep 1, 2023 | 1.89% (0.01894) | 87.02th | v3 (v2023.03.01) |
| Jul 8, 2023 | 1.88% (0.01879) | 86.83th | v3 (v2023.03.01) |
| Apr 23, 2023 | 1.63% (0.01631) | 85.64th | v3 (v2023.03.01) |
| Apr 3, 2023 | 1.67% (0.01668) | 85.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.68% (0.01680) | 85.70th | 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/2018/09/msg00013.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://skalatan.de/blog/advisory-hw-2018-06 x_refsource_MISCExploitPatchThird Party Advisory
- https://www.debian.org/security/2018/dsa-4292 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://skalatan.de/blog/advisory-hw-2018-06 | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4292 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.