Description
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in seunshare of selinux policycoreutils allows a user calling seunshare that is running in the unconfined SELinux domain to delete arbitrary root-owned files,
This issue affects policycoreutils through 3.10.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SELinuxProject | selinux | ≤ 3.10 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | policycoreutils | 2.7-1 | — |
| Debian 14 | selinux-python | 3.7-1 | — |
| Debian 13 | policycoreutils | 2.7-1 | — |
| Debian 13 | selinux-python | 3.7-1 | — |
| Debian 12 | policycoreutils | 2.7-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | selinux-python | No fix yet | — |
| Ubuntu 22.04 LTS | selinux-python | No fix yet | — |
| Ubuntu 20.04 LTS | selinux-python | No fix yet | — |
| Ubuntu 18.04 LTS | selinux-python | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | policycoreutils +8 | 3.11-2.1.hum1 | RHSA-2026:44343 |
Advisories 1
- RHSA-2026:44343 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 6, 2026