In FreeBSD 12.0-STABLE before r350648, 12.0-RELEASE before 12.0-RELEASE-p9, 11.3-STABLE before r350650, 11.3-RELEASE before 11.3-RELEASE-p2, and 11.2-RELEASE before 11.2-RELEASE-p13, the ICMPv6 input path incorrectly handles cases where an MLDv2 listener query packet is internally fragmented across multiple mbufs
Published Aug 29, 2019
9.8
CRITICALCVSS 3.1
EPSS 2.13%
Description
In FreeBSD 12.0-STABLE before r350648, 12.0-RELEASE before 12.0-RELEASE-p9, 11.3-STABLE before r350650, 11.3-RELEASE before 11.3-RELEASE-p2, and 11.2-RELEASE before 11.2-RELEASE-p13, the ICMPv6 input path incorrectly handles cases where an MLDv2 listener query packet is internally fragmented across multiple mbufs. A remote attacker may be able to cause an out-of-bounds read or write that may cause the kernel to attempt to access an unmapped page and subsequently panic.
Affected products
- Vendor n/a Product FreeBSD Defaultn/a
- Version and before 11.2-RELEASE-p13StatusaffectedConstraints-
- Version before 11.3-RELEASE-p2StatusaffectedConstraints-
- Version before 12.0-RELEASE-p9StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n/a | FreeBSD | n/a |
|
Configuration 1
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.2
- 11.3
- 11.3
- 11.3
- 11.3
- 11.3
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
- 12.0
Configuration 2
- n/a
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
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 3, 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 3, 2026 | 2.13% (0.02128) | 81.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.13% (0.02128) | 79.48th | v5 (v2026.06.15) |
| Jul 28, 2025 | 0.82% (0.00822) | 73.47th | v4 (v2025.03.14) |
| May 31, 2025 | 8.85% (0.08848) | 92.07th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.79% (0.04795) | 88.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.18% (0.10178) | 88.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.79% (0.04795) | 88.74th | v4 (v2025.03.14) |
| Jul 20, 2024 | 1.27% (0.01273) | 85.84th | v3 (v2023.03.01) |
| Oct 8, 2023 | 1.27% (0.01273) | 84.11th | v3 (v2023.03.01) |
| May 16, 2023 | 0.94% (0.00941) | 80.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.69% (0.00693) | 77.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.03% (0.09029) | 86.86th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.43% (0.03427) | 68.31th | v1 |
| Jan 6, 2022 | 3.43% (0.03427) | 68.01th | v1 |
| Sep 1, 2021 | 0.78% (0.00785) | 52.07th | v1 |
| Apr 14, 2021 | 0.78% (0.00785) | 0.00th | v1 |
References (2)
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:19.mldv2.asc x_refsource_CONFIRMPatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20190910-0002/ x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://security.FreeBSD.org/advisories/FreeBSD-SA-19:19.mldv2.asc | x_refsource_CONFIRMPatchVendor Advisory | |
| https://security.netapp.com/advisory/ntap-20190910-0002/ | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.