CVE-2006-4342
First published: Tue Oct 17 2006(Updated: )
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.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux | =3.0 |
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Reference Links
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=205618
- http://www.redhat.com/support/errata/RHSA-2006-0710.html
- http://secunia.com/advisories/22497
- http://www.kb.cert.org/vuls/id/245984
- http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm
- http://secunia.com/advisories/23064
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9649
Frequently Asked Questions
What is the severity of CVE-2006-4342?
CVE-2006-4342 is classified as a denial of service vulnerability that can lead to system unresponsiveness.
How do I fix CVE-2006-4342?
To mitigate CVE-2006-4342, it is recommended to upgrade Red Hat Enterprise Linux to a version that no longer contains this vulnerability.
Who is affected by CVE-2006-4342?
CVE-2006-4342 affects local users on Red Hat Enterprise Linux 3 systems running on SMP architecture.
What causes the vulnerability in CVE-2006-4342?
CVE-2006-4342 is caused by concurrent access to shared memory segments leading to a deadlock situation.
Is there a workaround for CVE-2006-4342?
As a temporary workaround for CVE-2006-4342, avoid simultaneous use of the shmat and shmctl functions on shared memory.
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