CVE-2011-2901
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest...
5.5 Medium
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.
Exploit likelihood
0.59%Down 0.4 points since Feb 4, 2022
What each source reports
NVD Score used
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.
- Record
CVE-2011-2901- CVSS 2.0
- 5.5 Medium
AV:A/AC:L/Au:S/C:N/I:N/A:C - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2011-2901- Updated
- 2026-11-02
EUVDEUVD-2011-2874 No score
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.
- Record
EUVD-2011-2874- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-596h-97jg-mfff No score
Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest...
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.
- Record
GHSA-596h-97jg-mfff- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kernelRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAERed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAE-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAE-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debugRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debug-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debug-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debuginfo-commonRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
Show 38 moreShow less
| Package | Affected | Fixed |
|---|---|---|
kernel-docRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xenRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xen-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xen-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernelRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAERed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAE-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-PAE-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debugRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debug-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debug-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-debuginfo-commonRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-docRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-kdumpRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-kdump-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xenRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xen-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernel-xen-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs |
before 0:2.6.18-274.3.1.el5 | 0:2.6.18-274.3.1.el5 |
kernelRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-PAERed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-PAE-debuginfoRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-PAE-develRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-debugRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-debug-debuginfoRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-debug-develRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-debuginfoRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-debuginfo-commonRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-develRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-docRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-kdumpRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-kdump-debuginfoRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-kdump-develRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-xenRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-xen-debuginfoRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
kernel-xen-develRed Hat:rhel_eus:5.6 From an advisory covering 6 CVEs |
before 0:2.6.18-238.31.1.el5 | 0:2.6.18-238.31.1.el5 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-2901 is a medium vulnerability (CVSS 5.5) in Xen, published October 1, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.
References
secunia.com/advisories/55082
openwall.com/lists/oss-security/2011/09/02/2
security.gentoo.org/glsa/glsa-201309-24.xml
rhn.redhat.com/errata/RHSA-2011-1212.html
bugzilla.redhat.com/show_bug.cgi?id=728042
nvd.nist.gov/vuln/detail/CVE-2011-2901
Show 32 moreShow less
access.redhat.com/errata/RHSA-2011:1212
github.com/advisories/GHSA-596h-97jg-mfff
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.7_Technical_Notes/kernel.html
security.access.redhat.com/data/csaf/v2/advisories/2011/rhsa-2011_1212.json
cve.org/CVERecord?id=CVE-2011-2482