CVE-2012-0879
Published: 23 February 2012
The I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.
From the Ubuntu security team
Louis Rilling discovered a flaw in Linux kernel's clone command when CLONE_IO is specified. An unprivileged local user could exploit this to cause a denial of service.
Priority
CVSS 3 base score: 5.5
Status
Notes
Author | Note |
---|---|
jdstrand | per Petr Matousek, "Looks like it got fixed in Linux kernel 2.6.33(-rc1)" |
apw | CLONE_IO was introduced by the commit below, the bug cannot have existed before then: fadad878cc0640cc9cd5569998bf54b693f7b38b |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0879
- http://www.openwall.com/lists/oss-security/2012/02/23/5
- http://comments.gmane.org/gmane.linux.kernel/922519
- https://usn.ubuntu.com/usn/usn-1389-1
- https://usn.ubuntu.com/usn/usn-1411-1
- https://usn.ubuntu.com/usn/usn-1408-1
- https://usn.ubuntu.com/usn/usn-1410-1
- NVD
- Launchpad
- Debian