SB2009022702 - Improper input validation in Linux kernel ext4
Published: February 27, 2009
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2009-0745)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation error within the ext4_group_add() function in fs/ext4/resize.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- http://bugzilla.kernel.org/show_bug.cgi?id=12433
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=fdff73f094e7220602cc3f8959c7230517976412
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7
- http://rhn.redhat.com/errata/RHSA-2009-1243.html
- http://secunia.com/advisories/34394
- http://secunia.com/advisories/34981
- http://secunia.com/advisories/36562
- http://secunia.com/advisories/37471
- http://www.debian.org/security/2009/dsa-1749
- http://www.debian.org/security/2009/dsa-1787
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.ubuntu.com/usn/usn-751-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/0509
- http://www.vupen.com/english/advisories/2009/3316
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10942
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7765