SB2010051201 - Improper input validation in Linux kernel
Published: May 12, 2010
Security Bulletin ID
SB2010051201
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote 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-2010-0730)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The MMIO instruction decoder in the Xen hypervisor in the Linux kernel 2.6.18 in Red Hat Enterprise Linux (RHEL) 5 allows guest OS users to cause a denial of service (32-bit guest OS crash) via vectors that trigger an unspecified instruction emulation. Per: http://secunia.com/advisories/39649 'Successful exploitation requires a 32bit system and access to an MMIO region.'
Remediation
Install update from vendor's website.
References
- http://secunia.com/advisories/39649
- http://secunia.com/advisories/43315
- http://support.avaya.com/css/P8/documents/100088287
- http://www.openwall.com/lists/oss-security/2010/05/07/1
- http://www.redhat.com/support/errata/RHSA-2010-0398.html
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.securityfocus.com/bid/39979
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- https://bugzilla.redhat.com/show_bug.cgi?id=572971
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11430