SB2005050203 - Improper locking in Linux kernel
Published: May 2, 2005
Security Bulletin ID
SB2005050203
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2005-0400)
The vulnerability allows a local user to gain access to sensitive information.
The ext2_make_empty function call in the Linux kernel before 2.6.11.6 does not properly initialize memory when creating a block for a new directory entry, which allows local users to obtain potentially sensitive information by reading the block.
Remediation
Install update from vendor's website.
References
- http://arkoon.net/advisories/ext2-make-empty-leak.txt
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11.6
- http://marc.info/?l=bugtraq&m=111238764720696&w=2
- http://secunia.com/advisories/14713/
- http://secunia.com/advisories/17002
- http://secunia.com/advisories/18684
- http://www.redhat.com/support/errata/RHSA-2005-366.html
- http://www.redhat.com/support/errata/RHSA-2005-663.html
- http://www.redhat.com/support/errata/RHSA-2006-0190.html
- http://www.redhat.com/support/errata/RHSA-2006-0191.html
- http://www.securityfocus.com/bid/12932
- http://www.vupen.com/english/advisories/2005/1878
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152532
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19866
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10336
- https://usn.ubuntu.com/103-1/