SB2011040402 - Resource management error in Linux kernel
Published: April 4, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011040402
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2011-1083)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.
Remediation
Install update from vendor's website.
References
- http://article.gmane.org/gmane.linux.kernel/1105744
- http://article.gmane.org/gmane.linux.kernel/1105888
- http://article.gmane.org/gmane.linux.kernel/1106686
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://openwall.com/lists/oss-security/2011/03/02/1
- http://openwall.com/lists/oss-security/2011/03/02/2
- http://rhn.redhat.com/errata/RHSA-2012-0862.html
- http://secunia.com/advisories/43522
- http://secunia.com/advisories/48115
- http://secunia.com/advisories/48410
- http://secunia.com/advisories/48898
- http://secunia.com/advisories/48964
- http://www.osvdb.org/71265
- https://bugzilla.redhat.com/show_bug.cgi?id=681578