CVEvulnerability
CVE-2021-29626
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-04-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-416
Description
In FreeBSD 13.0-STABLE before n245117, 12.2-STABLE before r369551, 11.4-STABLE before r369559, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, copy-on-write logic failed to invalidate shared memory page mappings between multiple processes allowing an unprivileged process to maintain a mapping after it is freed, allowing the process to read private data belonging to other processes or the kernel.
Affected configurations
• freebsd freebsd (< 11.4)
• freebsd freebsd (>= 12.0 < 12.2)
• freebsd freebsd 11.4
• freebsd freebsd 12.2
• freebsd freebsd 13.0
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:08.vm.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0008/ Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-21:08.vm.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20210423-0008/ Third Party Advisory