xen: linux: Fix Xen block IO merge-ability calculation (XSA-229)
Published Aug 24, 2017
8.8
HIGHCVSS 3.0
EPSS 0.50%
Description
The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain sensitive memory information, cause a denial of service, or gain host OS privileges by leveraging incorrect block IO merge-ability calculation.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
xen
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:C/I:C/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.50% (0.00497) | 40.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.50% (0.00497) | 38.48th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.27% (0.00266) | 47.13th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.88% (0.02880) | 77.16th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.27% (0.00266) | 48.05th | 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) |
| Feb 3, 2022 | 2.82% (0.02818) | 63.10th | v1 |
| Jan 6, 2022 | 2.82% (0.02818) | 62.75th | v1 |
| Sep 1, 2021 | 2.82% (0.02818) | 80.51th | v1 |
| Apr 14, 2021 | 2.82% (0.02818) | 0.00th | v1 |
References (13)
- http://www.debian.org/security/2017/dsa-3981 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2017/08/15/4 mailing-listx_refsource_MLISTMailing ListMitigationThird Party Advisory
- http://www.securityfocus.com/bid/100343 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039176 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-229.html x_refsource_CONFIRMMitigationPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2017-12134 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1477656 x_refsource_MISCIssue TrackingMitigationPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-12134
- https://security.gentoo.org/glsa/201801-14 vendor-advisoryx_refsource_GENTOO
- https://support.citrix.com/article/CTX225941 x_refsource_CONFIRMPatchThird Party Advisory
- https://usn.ubuntu.com/3655-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3655-2/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-12134
Change history (0)
No recorded changes yet.