SB2005082302 - Resource management errors in Linux kernel
Published: August 23, 2005
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management errors (CVE-ID: CVE-2005-2098)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.
References
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.12.5
- http://secunia.com/advisories/16355/
- http://secunia.com/advisories/17073
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:220
- http://www.redhat.com/support/errata/RHSA-2005-514.html
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://www.securityfocus.com/bid/14521
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9638
- https://usn.ubuntu.com/169-1/