Description
Algorithmic complexity vulnerability in the MCS translation daemon in mcstrans 0.2.3 allows local users to cause a denial of service (temporary daemon outage) via a large range of compartments in sensitivity labels.
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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | mcstrans | 0.2.6-1.el5 | RHSA-2007:0542 |
Advisories 1
- RHSA-2007:0542 Red Hat Security Advisory: mcstrans security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=288201
- https://bugzilla.redhat.com/attachment.cgi?id=193951
- 27589 third-party-advisory
- 39244 vdb-entry
- rhel-mctrans-dos(38357) vdb-entry
- RHSA-2007:0542 vendor-advisory
- oval:org.mitre.oval:def:10350 vdb-entry signature
- 26371 vdb-entry