xen: Insufficient bounding of "REP MOVS" to MMIO emulated inside the hypervisor (xsa112)
Published Dec 1, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.46%
Description
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
Affected products
No data.
Configuration 1
- 5.0
- 5.0
Configuration 2
Configuration 3
- 7.0
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-404.el5
Fixed · RHSA-2015:0783
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-404.el5 | Fixed | RHSA-2015:0783 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5. Future kernel-xen updates for Red Hat Enterprise Linux 5 may address this issue.
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 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 | 0.46% (0.00465) | 37.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.46% (0.00465) | 36.52th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00095) | 24.53th | 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 (17)
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 x_refsource_CONFIRM
- 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://rhn.redhat.com/errata/RHSA-2015-0783.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/59949 third-party-advisoryx_refsource_SECUNIAPermissions RequiredThird Party Advisory
- http://secunia.com/advisories/62672 third-party-advisoryx_refsource_SECUNIAPermissions RequiredThird Party Advisory
- http://support.citrix.com/article/CTX200288 x_refsource_CONFIRM
- http://support.citrix.com/article/CTX201794 x_refsource_CONFIRM
- http://www.debian.org/security/2015/dsa-3140 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/71331 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-112.html
- http://xenbits.xenproject.org/xsa/advisory-112.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2014-8867 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1164255 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-8867
- https://security.gentoo.org/glsa/201504-04 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-8867
Change history (0)
No recorded changes yet.