CVE-2010-0727

MEDIUM

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.

References

http://lkml.org/lkml/2010/3/11/269

http://secunia.com/advisories/39830

http://securitytracker.com/id?1023809

http://www.debian.org/security/2010/dsa-2053

http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.34-rc1-next-20100312.bz2

http://www.mandriva.com/security/advisories?name=MDVSA-2010:066

http://www.openwall.com/lists/oss-security/2010/03/12/1

http://www.redhat.com/support/errata/RHSA-2010-0330.html

http://www.redhat.com/support/errata/RHSA-2010-0380.html

http://www.redhat.com/support/errata/RHSA-2010-0521.html

https://bugzilla.redhat.com/show_bug.cgi?id=570863

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11392

Details

Source: MITRE

Published: 2010-03-16

Updated: 2019-04-22

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 4.7

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.4

Severity: MEDIUM