SB2010100901 - Resource management errors in Linux kernel
Published: October 9, 2010
Security Bulletin ID
SB2010100901
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) Resource management errors (CVE-ID: CVE-2010-2938)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when an Intel platform without Extended Page Tables (EPT) functionality is used, accesses VMCS fields without verifying hardware support for these fields, which allows local users to cause a denial of service (host OS crash) by requesting a VMCS dump for a fully virtualized Xen guest.
Remediation
Install update from vendor's website.
References
- http://secunia.com/advisories/46397
- http://support.avaya.com/css/P8/documents/100113326
- http://www.redhat.com/support/errata/RHSA-2010-0723.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/43578
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://xenbits.xensource.com/xen-unstable.hg?rev/15911
- https://bugzilla.redhat.com/show_bug.cgi?id=620490