Vulnerability Description
The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the gfs_lock function in the Linux kernel on Red Hat Enterprise Linux (RHEL) 5 and 6, does not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on a (1) GFS or (2) GFS2 filesystem, and then changing this file's permissions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.33.1 |
| Debian | Debian Linux | 5.0 |
| Redhat | Enterprise Linux | 5.0 |
Related Weaknesses (CWE)
References
- http://lkml.org/lkml/2010/3/11/269PatchThird Party Advisory
- http://secunia.com/advisories/39830Third Party Advisory
- http://securitytracker.com/id?1023809Third Party AdvisoryVDB Entry
- http://www.debian.org/security/2010/dsa-2053Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.34-rc1-next-20100312Release NotesVendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:066Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/03/12/1ExploitMailing ListThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0330.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0380.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0521.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=570863ExploitIssue TrackingPatch
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Third Party Advisory
- http://lkml.org/lkml/2010/3/11/269PatchThird Party Advisory
- http://secunia.com/advisories/39830Third Party Advisory
- http://securitytracker.com/id?1023809Third Party AdvisoryVDB Entry
FAQ
What is CVE-2010-0727?
CVE-2010-0727 is a vulnerability with a CVSS score of 4.9 (MEDIUM). The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the gfs_lock function in the Linux kernel on Red Hat Enterprise Linux (RHEL) 5 and 6, does not properly remove POSIX loc...
How severe is CVE-2010-0727?
CVE-2010-0727 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2010-0727?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Redhat Enterprise Linux.