In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero
Published Apr 4, 2018
7.5
HIGHCVSS 3.0
EPSS 4.21%
Description
In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero. This issue can allow a remote attacker who is able to send an arbitrary packet to cause the machine to crash.
Affected products
-
- Version All supported versions of FreeBSD.StatusaffectedConstraints-
- Version
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:C
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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.21% (0.04209) | 90.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.38% (0.04377) | 89.99th | v5 (v2026.06.15) |
| Jul 28, 2025 | 2.21% (0.02207) | 83.77th | v4 (v2025.03.14) |
| May 31, 2025 | 5.68% (0.05681) | 89.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.42% (0.04422) | 87.98th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.80% (0.05796) | 83.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.42% (0.04422) | 88.28th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.92% (0.00917) | 83.56th | v3 (v2023.03.01) |
| Jul 8, 2024 | 0.92% (0.00917) | 82.98th | v3 (v2023.03.01) |
| Oct 5, 2023 | 1.30% (0.01296) | 84.29th | v3 (v2023.03.01) |
| Aug 26, 2023 | 1.35% (0.01349) | 84.47th | v3 (v2023.03.01) |
| Mar 29, 2023 | 1.92% (0.01917) | 86.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.10% (0.02098) | 87.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.08% (0.02080) | 50.39th | v1 |
| Jan 6, 2022 | 2.08% (0.02080) | 49.89th | v1 |
| Sep 1, 2021 | 2.08% (0.02080) | 77.32th | v1 |
| Apr 14, 2021 | 2.08% (0.02080) | 0.00th | v1 |
References (7)
- http://seclists.org/fulldisclosure/2019/Jun/6 mailing-listx_refsource_FULLDISC
- http://www.securityfocus.com/bid/103666 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040628 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://seclists.org/bugtraq/2019/May/77 mailing-listx_refsource_BUGTRAQ
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:05.ipsec.asc vendor-advisoryx_refsource_FREEBSDVendor Advisory
- https://support.apple.com/kb/HT210090 x_refsource_CONFIRM
- https://support.apple.com/kb/HT210091 x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2019/Jun/6 | mailing-listx_refsource_FULLDISC | |
| http://www.securityfocus.com/bid/103666 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040628 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://seclists.org/bugtraq/2019/May/77 | mailing-listx_refsource_BUGTRAQ | |
| https://security.FreeBSD.org/advisories/FreeBSD-SA-18:05.ipsec.asc | vendor-advisoryx_refsource_FREEBSDVendor Advisory | |
| https://support.apple.com/kb/HT210090 | x_refsource_CONFIRM | |
| https://support.apple.com/kb/HT210091 | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.