xen: GNTTABOP_swap_grant_ref operation misbehavior (xsa-134)
Published Jun 15, 2015
4.9
MEDIUMCVSS 2.0
EPSS 0.44%
Description
GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
xen
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.
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:N/I:N/A:C
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 3, 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 3, 2026 | 0.44% (0.00439) | 35.90th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00439) | 34.74th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00121) | 28.67th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | 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 (14)
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html vendor-advisoryx_refsource_SUSE
- http://support.citrix.com/article/CTX201145 x_refsource_CONFIRM
- http://www.debian.org/security/2015/dsa-3286 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/75141 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032568 vdb-entryx_refsource_SECTRACK
- http://xenbits.xen.org/xsa/advisory-134.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-4163 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1226290 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-4163
- https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
- https://support.citrix.com/article/CTX206006 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-4163
Change history (0)
No recorded changes yet.