Vulnerability in Citrix Xen
CVE-2010-4255
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.
EPSS: 0.008 (51.6th percentile) — read the EPSS interpretation.
Affected products
- Citrix Xen — versions 3.0.2, 3.0.3, 3.0.4
- N/a — versions n/a
References
- secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_SECUNIA, third-party-advisory)
- secalert@redhat.com (x_refsource_CONFIRM, Patch)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_SECUNIA, third-party-advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch)