kernel: kvm: PIT timer race condition
Published Nov 10, 2014
4.7
MEDIUMCVSS 3.1
EPSS 0.29%
Description
Race condition in the __kvm_migrate_pit_timer function in arch/x86/kvm/i8254.c in the KVM subsystem in the Linux kernel through 3.17.2 allows guest OS users to cause a denial of service (host OS crash) by leveraging incorrect PIT emulation.
Affected products
No data.
Configuration 1
- ≤ 3.17.2
Configuration 2
- 5.0
Configuration 3
- 10.04
- 12.04
Configuration 4
- 7.0
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.6-20150123.1.el6ev
Fixed · RHSA-2015:0126
Red Hat Enterprise Linux 5
kvm-0:83-270.el5_11
Fixed · RHSA-2015:0869
Red Hat Enterprise Linux 6
kernel-0:2.6.32-504.1.3.el6
Fixed · RHSA-2014:1843
Red Hat Enterprise Linux 6.5 Extended Update Support
kernel-0:2.6.32-431.50.1.el6
Fixed · RHSA-2015:0284
Red Hat Enterprise Linux 7
kernel-0:3.10.0-123.9.2.el7
Fixed · RHSA-2014:1724
Red Hat Enterprise Linux 5
kvm
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.6-20150123.1.el6ev | Fixed | RHSA-2015:0126 |
| Red Hat Enterprise Linux 5 | kvm-0:83-270.el5_11 | Fixed | RHSA-2015:0869 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-504.1.3.el6 | Fixed | RHSA-2014:1843 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | kernel-0:2.6.32-431.50.1.el6 | Fixed | RHSA-2015:0284 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-123.9.2.el7 | Fixed | RHSA-2014:1724 |
| Red Hat Enterprise Linux 5 | kvm | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6 and 7. This issue does affect the kvm packages as shipped with Red Hat Enterprise Linux 5. Future updates may address this issue in the respective Red Hat Enterprise Linux releases.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/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 2, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.29% (0.00294) | 20.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00294) | 20.87th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00041) | 9.42th | 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 13, 2023 | 1.28% (0.01282) | 67.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | 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) |
References (15)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2febc839133280d5a5e8e1179c94ea674489dae2 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2015-0126.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0284.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0869.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2014/dsa-3060 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/10/24/9 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-2394-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2417-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2418-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2491-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-3611 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1144878 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/2febc839133280d5a5e8e1179c94ea674489dae2 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-3611
- https://www.cve.org/CVERecord?id=CVE-2014-3611
Change history (0)
No recorded changes yet.