Description
The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from __verify_map_perm_classperms and hashtab_map).
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 | libsepol | 3.3-1 | — |
| Debian 13 | libsepol | 3.3-1 | — |
| Debian 12 | libsepol | 3.3-1 | — |
| Debian 11 | libsepol | 3.1-1+deb11u1 | DLA-3930-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libsepol | 3.0-1ubuntu0.1 | USN-5391-1 |
| Ubuntu 18.04 LTS | libsepol | 2.7-1ubuntu0.1 | USN-5391-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | libsepol | 2.4-2ubuntu0.1~esm1 | USN-5391-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libsepol +2 | 2.9-3.el8 | RHSA-2021:4513 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | libsepol +2 | 2.9-3.el8 | ALSA-2021:4513 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libsepol | 2.9-3.el8 | RLSA-2021:4513 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libsepol +3 | 3.4-3.amzn2023.0.3 | ALAS2023-2023-017 |
| Amazon Linux 2 | libsepol +2 | 2.5-10.amzn2.0.1 | ALAS2-2023-2307 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libsepol +2 | 2.9-3.el8 | ELSA-2021-4513 |
Advisories 14
- ALSA-2021:4513 Moderate: libsepol security update AlmaLinux Security Advisories · Oct 29, 2026
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2022-0571 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026
- RHSA-2021:4513 Red Hat Security Advisory: libsepol security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-5391-1 libsepol vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3930-1 libsepol - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4513 Moderate: libsepol security update Rocky Linux Security Advisories · Feb 5, 2026
- NCSC-2025-0382 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Dec 9, 2025
- SSA-202008 SSA-202008: Multiple Vulnerabilities in Ruggedcom Rox Before V2.17.0 Siemens ProductCERT · Dec 9, 2025
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- WID-SEC-2025-0300 NetApp ActiveIQ Unified Manager: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Feb 9, 2025
- ALAS2-2023-2307 Moderate: libsepol security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 19, 2023
- ALAS2023-2023-017 Moderate: libsepol security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 22, 2023
- ELSA-2021-4513 Moderate: libsepol security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021