CVE-2005-2098

Linux Kernel < 2.6.12.5 - Denial of Service via KEYCTL_JOIN_SESSION_KEYRING Semaphore Hang

Title source: llm
STIX 2.1

Description

The KEYCTL_JOIN_SESSION_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a denial of service (semaphore hang) via a new session keyring (1) with an empty name string, (2) with a long name string, (3) with the key quota reached, or (4) ENOMEM.

References (9)

Core 9
Core References
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/169-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/14521
Vendor Advisory vendor-advisory x_refsource_mandrake
http://www.mandriva.com/security/advisories?name=MDKSA-2005:220
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/17073
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9638
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2005-514.html
Third Party Advisory, VDB Entry vendor-advisory x_refsource_fedora
http://www.securityfocus.com/archive/1/427980/100/0/threaded
Patch, Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/16355/

Scores

EPSS 0.0320
EPSS Percentile 87.0%

Details

Status published
Products (14)
linux/linux_kernel 2.6.0 (12 CPE variants)
linux/linux_kernel 2.6.1 (3 CPE variants)
linux/linux_kernel 2.6.2
linux/linux_kernel 2.6.3
linux/linux_kernel 2.6.4
linux/linux_kernel 2.6.5
linux/linux_kernel 2.6.6 (2 CPE variants)
linux/linux_kernel 2.6.7 (2 CPE variants)
linux/linux_kernel 2.6.8 (4 CPE variants)
linux/linux_kernel 2.6.8.1
... and 4 more
Published Aug 23, 2005
Tracked Since Feb 18, 2026