CVE-2010-4255 | BDVDB-2026-44837 Detail
Description#
The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handle_gdt_ldt_mapping_fault function, which allows guest OS users to cause a denial of service (host OS BUG_ON) via a crafted memory access.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.redhat.com/support/errata/RHSA-2011-0017.html
- http://secunia.com/advisories/46397
- https://bugzilla.redhat.com/show_bug.cgi?id=658155
- http://openwall.com/lists/oss-security/2010/11/30/5
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://secunia.com/advisories/42884
- http://lists.xensource.com/archives/html/xen-devel/2010-11/msg01650.html
- http://openwall.com/lists/oss-security/2010/11/30/8
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.