Description
Linux kernel 2.6 before 2.6.11 does not restrict access to the N_MOUSE line discipline for a TTY, which allows local users to gain privileges by injecting mouse or keyboard events into other user sessions.
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 4 | kernel +6 | 2.6.9-5.0.5.EL | RHSA-2005:366 |
Advisories 1
- RHSA-2005:366 Red Hat Security Advisory: kernel security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- RHSA-2005:366 vendor-advisory
- oval:org.mitre.oval:def:9460 vdb-entry signature
- [linux-kernel] 20050301 Re: Breakage from patch: Only root should be able to set the N_MOUSE line discipline. mailing-list
- FLSA:157459-3 vendor-advisory
- http://linux.bkbits.net:8080/linux-2.6/cset%4041fa6464E1UuGu6zmketEYxm73KSyQ