CVE-2010-0727

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.redhat.com/support/errata/RHSA-2010-0330.html
• http://www.openwall.com/lists/oss-security/2010/03/12/1
• http://www.redhat.com/support/errata/RHSA-2010-0380.html
• http://lkml.org/lkml/2010/3/11/269
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11392
• http://securitytracker.com/id?1023809
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:066
• http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.34-rc1-next-20100312.bz2
• http://www.debian.org/security/2010/dsa-2053
• http://www.redhat.com/support/errata/RHSA-2010-0521.html
• http://secunia.com/advisories/39830
• https://bugzilla.redhat.com/show_bug.cgi?id=570863

References

• http://www.redhat.com/support/errata/RHSA-2010-0330.html
• http://www.openwall.com/lists/oss-security/2010/03/12/1
• http://www.redhat.com/support/errata/RHSA-2010-0380.html
• http://lkml.org/lkml/2010/3/11/269
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11392
• http://securitytracker.com/id?1023809
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:066
• http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.34-rc1-next-20100312.bz2
• http://www.debian.org/security/2010/dsa-2053
• http://www.redhat.com/support/errata/RHSA-2010-0521.html
• http://secunia.com/advisories/39830
• https://bugzilla.redhat.com/show_bug.cgi?id=570863

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