Kernel: kvm: use after free in complete_emulated_mmio
Published Jan 15, 2017
7.1
HIGHCVSS 3.0
EPSS 0.42%
Description
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt.
Affected products
No data.
- ≤ 4.9.3
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-693.el7
Fixed · RHSA-2017:1842
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-693.rt56.617.el7
Fixed · RHSA-2017:2077
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-0:3.10.0-693.el7 | Fixed | RHSA-2017:1842 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-693.rt56.617.el7 | Fixed | RHSA-2017:2077 |
| 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 version of Linux kernel as shipped with Red Hat Enterprise Linux 7. 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.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
AV:L/AC:L/Au:N/C:P/I:N/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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00421) | 34.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00421) | 33.42th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00087) | 22.87th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.24% (0.01242) | 30.15th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.24% (0.01242) | 0.00th | v1 |
References (11)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74d x_refsource_CONFIRM
- http://www.debian.org/security/2017/dsa-3791 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2017/01/13/7 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/95430 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1037603 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2017-2584 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1413001 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2017-2584
- https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-2584
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74d | x_refsource_CONFIRM | |
| http://www.debian.org/security/2017/dsa-3791 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2017/01/13/7 | mailing-listx_refsource_MLIST | |
| http://www.securityfocus.com/bid/95430 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1037603 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2017-2584 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1413001 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-2584 | ||
| https://usn.ubuntu.com/3754-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-2584 |
Change history (0)
No recorded changes yet.