kernel: xen: Insufficient restrictions on certain MMU update hypercalls (xsa109)
Published Nov 19, 2014
5.4
MEDIUMCVSS 2.0
EPSS 2.22%
Description
The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP).
Affected products
No data.
Configuration 2
- 7.0
Configuration 3
- 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
No data.
Red Hat Enterprise Linux 5
kernel-xen
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-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:N/AC:H/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 2, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.22% (0.02221) | 82.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.22% (0.02221) | 80.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.89% (0.01887) | 81.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.60% (0.00596) | 79.10th | v3 (v2023.03.01) |
| Jul 1, 2024 | 0.60% (0.00596) | 78.49th | v3 (v2023.03.01) |
| May 15, 2024 | 0.61% (0.00615) | 78.67th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.67% (0.00670) | 79.13th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00670) | 76.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://secunia.com/advisories/62672 third-party-advisoryx_refsource_SECUNIAPermissions Required
- http://www.debian.org/security/2015/dsa-3140 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/71149 vdb-entryx_refsource_BID
- http://xenbits.xen.org/xsa/advisory-109.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2014-8594 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1160664 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98767 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2014-8594
- https://security.gentoo.org/glsa/201504-04 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-8594
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html | vendor-advisoryx_refsource_SUSEThird Party Advisory | |
| http://secunia.com/advisories/62672 | third-party-advisoryx_refsource_SECUNIAPermissions Required | |
| http://www.debian.org/security/2015/dsa-3140 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.securityfocus.com/bid/71149 | vdb-entryx_refsource_BID | |
| http://xenbits.xen.org/xsa/advisory-109.html | x_refsource_CONFIRMPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-8594 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1160664 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/98767 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-8594 | ||
| https://security.gentoo.org/glsa/201504-04 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2014-8594 |
Change history (0)
No recorded changes yet.