Kernel: Kvm: vmx/svm potential privilege escalation inside guest
Published Feb 6, 2017
8.4
HIGHCVSS 3.0
EPSS 0.60%
Description
The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a "MOV SS, NULL selector" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.
Affected products
No data.
- ≤ 4.9.4
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.26.1.el7
Fixed · RHSA-2017:1615
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.26.1.rt56.442.el7
Fixed · RHSA-2017:1616
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.26.1.el7 | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.26.1.rt56.442.el7 | Fixed | RHSA-2017:1616 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.
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:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.60% (0.00605) | 47.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.58% (0.00582) | 43.00th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.07% (0.00070) | 18.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00181) | 56.62th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.18% (0.00181) | 55.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00181) | 53.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=33ab91103b3415e12457e3104f0e4517ce12d0f3 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- http://www.debian.org/security/2017/dsa-3791 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2017/01/19/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95673 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1615 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1616 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-2583 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1414735 x_refsource_CONFIRMIssue TrackingPatch
- https://github.com/torvalds/linux/commit/33ab91103b3415e12457e3104f0e4517ce12d0f3 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-2583
- https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-2583
Change history (0)
No recorded changes yet.