CVE-2010-0419 Information

Description

The x86 emulator in KVM 83 when a guest is configured for Symmetric Multiprocessing (SMP) does not properly restrict writing of segment selectors to segment registers which might allow guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region and replacing an instruction in between emulator entry and instruction fetch.

Reference

http://securitytracker.com/id?1023663 http://www.redhat.com/support/errata/RHSA-2010-0126.html http://www.securityfocus.com/bid/38467 https://bugzilla.redhat.com/show_bug.cgi?id=563463 https://exchange.xforce.ibmcloud.com/vulnerabilities/56662 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A10139