SB2005012101 - Improper update of reference count in Linux kernel
Published: January 21, 2005
Security Bulletin ID
SB2005012101
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper update of reference count (CVE-ID: CVE-2004-1057)
The vulnerability allows a local user to execute arbitrary code.
Multiple drivers in Linux kernel 2.4.19 and earlier do not properly mark memory with the VM_IO flag, which causes incorrect reference counts and may lead to a denial of service (kernel panic) when accessing freed kernel pages.
Remediation
Install update from vendor's website.
References
- http://secunia.com/advisories/18562
- http://www.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.23aa3/00_VM_IO-4
- http://www.redhat.com/support/errata/RHSA-2005-016.html
- http://www.redhat.com/support/errata/RHSA-2005-017.html
- http://www.redhat.com/support/errata/RHSA-2006-0140.html
- http://www.securityfocus.com/bid/12338
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=137821
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19275
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11474