Resource exhaustion in Linux kernel - CVE-2012-0879
Published: May 17, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44073
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2012-0879
CWE-ID: CWE-400
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2012-0879
Install update from vendor's website.
Sources
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.33
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=61cc74fbb87af6aa551a06a370590c9bc07e29d9
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b69f2292063d2caf37ca9aec7d63ded203701bf3
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
- http://marc.info/?l=bugtraq&m=139447903326211&w=2
- http://rhn.redhat.com/errata/RHSA-2012-0481.html
- http://rhn.redhat.com/errata/RHSA-2012-0531.html
- http://secunia.com/advisories/48545
- http://secunia.com/advisories/48842
- http://www.debian.org/security/2012/dsa-2469
- http://www.openwall.com/lists/oss-security/2012/02/23/5
- http://www.securitytracker.com/id?1027086
- http://www.ubuntu.com/usn/USN-1408-1
- http://www.ubuntu.com/usn/USN-1410-1
- http://www.ubuntu.com/usn/USN-1411-1
- https://bugzilla.redhat.com/show_bug.cgi?id=796829
- https://github.com/torvalds/linux/commit/61cc74fbb87af6aa551a06a370590c9bc07e29d9
- https://github.com/torvalds/linux/commit/b69f2292063d2caf37ca9aec7d63ded203701bf3