kernel: kvm: out-of-bounds access in set_var_mtrr_msr
Published Jun 27, 2016
7.1
HIGHCVSS 3.0
EPSS 0.34%
Description
The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.
Affected products
No data.
- ≤ 4.6
No data.
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | 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, 7 and Red Hat Enterprise MRG 2.
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
AV:L/AC:L/Au:N/C:P/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 | 0.34% (0.00345) | 25.66th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.34% (0.00345) | 26.15th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00104) | 26.01th | 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 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (8)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5 x_refsource_CONFIRMVendor Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2016/05/16/2 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2016-3713 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1332139 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-3713
- https://www.cve.org/CVERecord?id=CVE-2016-3713
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5 | x_refsource_CONFIRMVendor Advisory | |
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2016/05/16/2 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2016-3713 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1332139 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5 | x_refsource_CONFIRMVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-3713 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-3713 |
Change history (0)
No recorded changes yet.