The mq_open system call in Linux kernel 2.6.9, in certain situations, can decrement a counter twice (double decrement) as a result of multiple calls to the mntput function when the dentry_open function call fails, which allows local users to cause a denial of service (panic) via unspecified attack vectors.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 2.6.9-2.6.20 (including) | 2.6.9-2.6.20 (including) |
| Red Hat Enterprise Linux 4 | RedHat | kernel-0:2.6.9-22.0.2.EL | * |
| Linux-source-2.6.15 | Ubuntu | dapper | * |
| Linux-source-2.6.17 | Ubuntu | edgy | * |
References
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169130
- http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
- http://rhn.redhat.com/errata/RHSA-2006-0101.html
- http://secunia.com/advisories/18510
- http://secunia.com/advisories/18527
- http://secunia.com/advisories/18788
- http://secunia.com/advisories/19038
- http://secunia.com/advisories/19374
- http://www.debian.org/security/2006/dsa-1017
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7c7dce9209161eb260cdf9e9172f72c3a02379e6
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:040
- http://www.novell.com/linux/security/advisories/2006_06_kernel.html
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://www.securityfocus.com/archive/1/427981/100/0/threaded
- http://www.securityfocus.com/bid/16283
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25302
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10731
- https://usn.ubuntu.com/244-1/
- http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=169130
- http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
- http://rhn.redhat.com/errata/RHSA-2006-0101.html
- http://secunia.com/advisories/18510
- http://secunia.com/advisories/18527
- http://secunia.com/advisories/18788
- http://secunia.com/advisories/19038
- http://secunia.com/advisories/19374
- http://www.debian.org/security/2006/dsa-1017
- http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7c7dce9209161eb260cdf9e9172f72c3a02379e6
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:040
- http://www.novell.com/linux/security/advisories/2006_06_kernel.html
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://www.securityfocus.com/archive/1/427981/100/0/threaded
- http://www.securityfocus.com/bid/16283
- https://exchange.xforce.ibmcloud.com/vulnerabilities/25302
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10731
- https://usn.ubuntu.com/244-1/