xen: information leak via version information hypercall (XSA-122)
Published Mar 12, 2015
2.1
LOWCVSS 2.0
EPSS 0.47%
Description
The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest users to obtain sensitive information via unspecified vectors.
Affected products
No data.
Configuration 1
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.3.0
- 3.3.1
- 3.3.2
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6.1
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.3.0
- 4.3.1
- 4.4.0
- 4.4.0
- 4.4.1
- 4.5.0
Configuration 2
- 20
- 21
- 22
Configuration 3
- 7.0
No data.
Red Hat Enterprise Linux 5
xen
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does affect the Xen hypervisor as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.47% (0.00466) | 38.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.47% (0.00470) | 36.80th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00076) | 20.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.36th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.06% (0.00062) | 26.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.34th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (16)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html vendor-advisoryx_refsource_FEDORAThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html vendor-advisoryx_refsource_SUSE
- http://support.citrix.com/article/CTX200484 x_refsource_CONFIRM
- http://www.debian.org/security/2015/dsa-3181 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/72955 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1031806 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1031837 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423503.htm x_refsource_CONFIRM
- http://xenbits.xen.org/xsa/advisory-122.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-2045 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1195298 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-2045
- https://security.gentoo.org/glsa/201504-04 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-2045
Change history (0)
No recorded changes yet.