HIGH
xen: x86: Incorrect handling of IST settings during CPU hotplug (XSA-244)
Published Oct 18, 2017
8.8
HIGHCVSS 3.0
EPSS 0.38%
Description
An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
8.0 HIGH Red Hat
CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality Impact High
Integrity Impact High
Availability Impact High
4.6 MEDIUM NVD
AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.38% 0.00383
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00383
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00383) | 29.89th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.38% (0.00383) | 29.86th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00072) | 19.44th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.81% (0.01806) | 35.10th | v1 |
| Jan 6, 2022 | 1.81% (0.01806) | 34.40th | v1 |
| Sep 1, 2021 | 1.81% (0.01806) | 74.37th | v1 |
| Apr 14, 2021 | 1.81% (0.01806) | 0.00th | v1 |
Weaknesses (0)
No CWE recorded.
References (11)
- http://www.securitytracker.com/id/1039568 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-244.html
- https://access.redhat.com/security/cve/CVE-2017-15594 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1499824 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-15594
- https://security.gentoo.org/glsa/201801-14 vendor-advisoryx_refsource_GENTOO
- https://support.citrix.com/article/CTX228867 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-15594
- https://www.debian.org/security/2017/dsa-4050 vendor-advisoryx_refsource_DEBIAN
- https://xenbits.xen.org/xsa/advisory-244.html x_refsource_CONFIRMMitigationPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1039568 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| http://xenbits.xen.org/xsa/advisory-244.html | ||
| https://access.redhat.com/security/cve/CVE-2017-15594 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1499824 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-15594 | ||
| https://security.gentoo.org/glsa/201801-14 | vendor-advisoryx_refsource_GENTOO | |
| https://support.citrix.com/article/CTX228867 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2017-15594 | ||
| https://www.debian.org/security/2017/dsa-4050 | vendor-advisoryx_refsource_DEBIAN | |
| https://xenbits.xen.org/xsa/advisory-244.html | x_refsource_CONFIRMMitigationPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Oct 18, 2017
Updated Aug 5, 2024
Reserved Oct 18, 2017
Link CVE-2017-15594
CISA Vulnrichment
Updated n/a