CVE-2010-0727

Summary

CVE	CVE-2010-0727
State	PUBLISHED
Assigner	redhat
Source Priority	CVE Program / NVD first with legacy fallback
Published	2010-03-16 19:30:00 UTC
Updated	2026-04-29 01:13:23 UTC
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.

Risk And Classification

Primary CVSS: v2.0 4.9 from [email protected]

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

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector

Local

Access Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

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

NVD Known Affected Configurations (CPE 2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Debian	Debian Linux	5.0	All	All	All
Operating System	Linux	Linux Kernel	All	All	All	All
Operating System	Redhat	Enterprise Linux	5.0	All	All	All
Operating System	Redhat	Enterprise Linux	6.0	All	All	All

Vendor Declared Affected Products

Source	Vendor	Product	Version	Platforms
CNA	Na	N/a	affected n/a	Not specified

References

Reference	Source	Link	Tags
404: File not found	af854a3a-2127-422b-91ae-364da2661108	www.kernel.org	Release Notes, Vendor Advisory
SecurityTracker.com Archives - Red Hat Global File System gfs_lock() Lets Local Users Deny Service	af854a3a-2127-422b-91ae-364da2661108	securitytracker.com	Third Party Advisory, VDB Entry
Support	af854a3a-2127-422b-91ae-364da2661108	www.redhat.com	Third Party Advisory
Bug 570863 – CVE-2010-0727 kernel: bug in GFS/GFS2 locking code leads to dos	af854a3a-2127-422b-91ae-364da2661108	bugzilla.redhat.com	Exploit, Issue Tracking, Patch, Third Party Advisory
LKML: Steven Whitehouse: [PATCH 3/3] GFS2: Skip check for mandatory locks when unlocking	af854a3a-2127-422b-91ae-364da2661108	lkml.org	Patch, Third Party Advisory
Support	af854a3a-2127-422b-91ae-364da2661108	www.redhat.com	Third Party Advisory
Debian -- Security Information -- DSA-2053-1 linux-2.6	af854a3a-2127-422b-91ae-364da2661108	www.debian.org	Third Party Advisory
Debian update for linux-2.6 - Advisories - Community	af854a3a-2127-422b-91ae-364da2661108	secunia.com	Third Party Advisory
Repository / Oval Repository	af854a3a-2127-422b-91ae-364da2661108	oval.cisecurity.org	Third Party Advisory
Support	af854a3a-2127-422b-91ae-364da2661108	www.redhat.com	Third Party Advisory
Support / Security / Advisories / / MDVSA-2010:066 \| Mandriva	af854a3a-2127-422b-91ae-364da2661108	www.mandriva.com	Third Party Advisory
oss-security - CVE-2010-0727 kernel: gfs/gfs2 locking code DoS flaw	af854a3a-2127-422b-91ae-364da2661108	www.openwall.com	Exploit, Mailing List, Third Party Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

Vendor Comments And Credit

Organization	Published	Contributor	Statement
Red Hat	2010-04-06	Vincent Danen	Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/CVE-2010-0727. This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise MRG, as it did not include support for the GFS and GFS2 file systems. For the GFS issue, it was addressed in Red Hat Enterprise Linux 3 in the gfs package, 4 in the GFS-kernel package, and 5 in the gfs-kmod package, via https://rhn.redhat.com/errata/RHSA-2010-9493.html, https://rhn.redhat.com/errata/RHSA-2010-9494.html, https://rhn.redhat.com/errata/RHSA-2010-0291.html respectively. For the GFS2 issue, it was addressed in Red Hat Enterprise Linux 5 in the kernel package via https://rhn.redhat.com/errata/RHSA-2010-0178.html.

There are currently no legacy QID mappings associated with this CVE.