kernel: kvm: pv_eoi guest updates with interrupts disabled
Published Jul 16, 2013
5.7
MEDIUMCVSS 2.0
EPSS 0.49%
Description
A certain Red Hat patch to the KVM subsystem in the kernel package before 2.6.32-358.11.1.el6 on Red Hat Enterprise Linux (RHEL) 6 does not properly implement the PV EOI feature, which allows guest OS users to cause a denial of service (host OS crash) by leveraging a time window during which interrupts are disabled but copy_to_user function calls are possible.
Affected products
No data.
- 6.0
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.4-20130528.0.el6_4
Fixed · RHSA-2013:0907
Red Hat Enterprise Linux 6
kernel-0:2.6.32-358.11.1.el6
Fixed · RHSA-2013:0911
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.4-20130528.0.el6_4 | Fixed | RHSA-2013:0907 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-358.11.1.el6 | Fixed | RHSA-2013:0911 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kvm | 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 Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2. This issue does not affect the versions of KVM package as shipped with Red Hat Enterprise Linux 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:A/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 3, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.49% (0.00487) | 39.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.49% (0.00487) | 37.88th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.23% (0.00226) | 42.45th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.96% (0.02956) | 77.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.23% (0.00226) | 43.32th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00124) | 48.44th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.12% (0.00124) | 47.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00124) | 45.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 13, 2023 | 0.95% (0.00954) | 35.90th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.11% (0.01108) | 54.42th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
References (6)
- http://rhn.redhat.com/errata/RHSA-2013-0911.html vendor-advisoryx_refsource_REDHATVendor Advisory
- https://access.redhat.com/security/cve/CVE-2013-1935 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=949981 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-1935
- https://rhn.redhat.com/errata/RHSA-2013-0907.html vendor-advisoryx_refsource_REDHAT
- https://www.cve.org/CVERecord?id=CVE-2013-1935
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2013-0911.html | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2013-1935 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=949981 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-1935 | ||
| https://rhn.redhat.com/errata/RHSA-2013-0907.html | vendor-advisoryx_refsource_REDHAT | |
| https://www.cve.org/CVERecord?id=CVE-2013-1935 |
Change history (0)
No recorded changes yet.