xen: potential unintended writes to host MSI message data field via qemu (xsa-128)
Published Jun 3, 2015
4.9
MEDIUMCVSS 2.0
EPSS 0.45%
Description
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields.
Affected products
No data.
- 3.3.0
- 3.3.1
- 3.3.2
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 4.0.1
- 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
- 4.3.2
- 4.3.4
- 4.4.0
- 4.4.1
- 4.5.0
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 then Xen packages 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: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 | 0.45% (0.00450) | 36.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.45% (0.00450) | 35.55th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00124) | 29.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.06% (0.00064) | 28.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 26.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (20)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160154.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160171.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160685.html vendor-advisoryx_refsource_FEDORA
- 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/msg00029.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-3284 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2015/dsa-3286 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/74947 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032456 vdb-entryx_refsource_SECTRACK
- http://www.ubuntu.com/usn/USN-2630-1 vendor-advisoryx_refsource_UBUNTU
- http://xenbits.xen.org/xsa/advisory-128.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-4103 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1223846 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-4103
- 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-2015-4103
Change history (0)
No recorded changes yet.