CVE-2006-4342

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2006-10-17 · updated 2026-06-16
Weakness: CWE-667

Description

The kernel in Red Hat Enterprise Linux 3, when running on SMP systems, allows local users to cause a denial of service (deadlock) by running the shmat function on an shm at the same time that shmctl is removing that shm (IPC_RMID), which prevents a spinlock from being unlocked.

Affected products

Red Hat Enterprise Linux: 3.0

References

http://secunia.com/advisories/22497
http://secunia.com/advisories/23064
http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
http://www.kb.cert.org/vuls/id/245984
http://www.redhat.com/support/errata/RHSA-2006-0710.html
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=205618
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9649
http://secunia.com/advisories/22497
http://secunia.com/advisories/23064
http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
http://www.kb.cert.org/vuls/id/245984
http://www.redhat.com/support/errata/RHSA-2006-0710.html

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