In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration
Published Jul 26, 2019
7.8
HIGHCVSS 3.1
EPSS 0.59%
Description
In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration. This causes an incorrect signal to be raised leading to a write after free of kernel memory allowing a malicious user to gain root privileges or escape a jail.
Affected products
-
- Version FreeBSD before 12.0-RELEASE-p8StatusaffectedConstraints-
- Version and before 11.2-RELEASE-p12StatusaffectedConstraints-
- Version before 11.3-RELEASE-p1StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.59% (0.00591) | 46.38th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.59% (0.00591) | 46.94th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00063) | 27.34th | v3 (v2023.03.01) |
| Jul 19, 2024 | 0.06% (0.00063) | 27.34th | v3 (v2023.03.01) |
| May 25, 2024 | 0.04% (0.00044) | 12.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.41% (0.01412) | 50.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.63% (0.03630) | 71.73th | v1 |
| Jan 6, 2022 | 3.63% (0.03630) | 71.48th | v1 |
| Jan 5, 2022 | 0.83% (0.00833) | 58.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (3)
- http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html x_refsource_MISCThird Party AdvisoryVDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc vendor-advisoryx_refsource_FREEBSDVendor Advisory
- https://security.netapp.com/advisory/ntap-20190814-0003/ x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/153748/FreeBSD-Security-Advisory-FreeBSD-SA-19-13.pts.html | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://security.FreeBSD.org/advisories/FreeBSD-SA-19:13.pts.asc | vendor-advisoryx_refsource_FREEBSDVendor Advisory | |
| https://security.netapp.com/advisory/ntap-20190814-0003/ | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.