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CVE-2011-2901
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service…
Medium5.5EPSS 0.59%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.5 | AV:A/AC:L/Au:S/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 0.59% · top 52% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (5)
- 55082 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20110902 Xen Security Advisory 4 (CVE-2011-2901) - Xen 3.3 vaddr validation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- GLSA-201309-24 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2011:1212 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=728042 (opens in a new tab)x_refsource_CONFIRMx_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)
Record last updated .