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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…
Medium6.1EPSS 0.77%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.1 | AV:A/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.77% · top 44% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (9)
- 20111013 VMSA-2011-0012 VMware ESXi and ESX updates to third party libraries and ESX Service Console (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- RHSA-2011:0017 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 46397 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=658155 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20101130 CVE request: xen: x86-64: don't crash Xen upon direct pv guest access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 42884 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [xen-devel] 20101129 [PATCH] x86-64: don't crash Xen upon direct pv guest access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20101130 Re: CVE request: xen: x86-64: don't crash Xen upon direct pv guest access (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2010-4255)Record last updated .