SB2005050208 - Improper input validation in Linux kernel
Published: May 2, 2005
Security Bulletin ID
SB2005050208
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2005-0977)
The vulnerability allows a local user to perform service disruption.
The shmem_nopage function in shmem.c for the tmpfs driver in Linux kernel 2.6 does not properly verify the address argument, which allows local users to cause a denial of service (kernel crash) via an invalid address.
Remediation
Install update from vendor's website.
References
- http://linux.bkbits.net:8080/linux-2.6/cset@420551fbRlv9-QG6Gw9Lw_bKVfPSsg
- http://lkml.org/lkml/2005/2/5/111
- http://www.redhat.com/support/errata/RHSA-2005-366.html
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://www.securityfocus.com/bid/12970
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10400
- https://usn.ubuntu.com/103-1/