CVE-2010-0727

kernel: bug in GFS/GFS2 locking code leads to dos

Severity Score

4.9

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función gfs2_lock en el Linux kernel anterior v2.6.34-rc1-next-20100312, y la función gfs_lock en el Linux kernel de Red Hat Enterprise Linux (RHEL) v5 y v6, no elimina adecuadamente el POSIX locks en los archivos setgid sin permisos group-execute, lo que permite a usuarios locales causar una denegación de servicio (BUG y caída de sistema) bloqueando un archivo en los sistemas de archivos(1) GFS o (2) GFS2, y luego cambiar los permisos de este archivo.

*Credits: N/A

CVSS Scores

NISTv2 4.9

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2010-02-26 CVE Reserved
2010-03-16 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-399: Resource Management Errors

CAPEC

References (13)

URL	Tag	Source
http://secunia.com/advisories/39830	Third Party Advisory
http://securitytracker.com/id?1023809	Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11392	Signature

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2010/03/12/1	2024-08-07
https://bugzilla.redhat.com/show_bug.cgi?id=570863	2024-08-07

URL	Date	SRC
http://lkml.org/lkml/2010/3/11/269	2020-08-07

URL	Date	SRC
http://www.debian.org/security/2010/dsa-2053	2020-08-07
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.34-rc1-next-20100312.bz2	2020-08-07
http://www.mandriva.com/security/advisories?name=MDVSA-2010:066	2020-08-07
http://www.redhat.com/support/errata/RHSA-2010-0330.html	2020-08-07
http://www.redhat.com/support/errata/RHSA-2010-0380.html	2020-08-07
http://www.redhat.com/support/errata/RHSA-2010-0521.html	2020-08-07
https://access.redhat.com/security/cve/CVE-2010-0727	2010-07-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 2.6.33.1 Search vendor "Linux" for product "Linux Kernel" and version " <= 2.6.33.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				5.0 Search vendor "Debian" for product "Debian Linux" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				5.0 Search vendor "Redhat" for product "Enterprise Linux" and version "5.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"		-		Affected