libvirt: qemu: out-of-bounds read access in qemuDomainGetBlockIoTune() due to invalid index
Published Oct 6, 2014
5.8
MEDIUMCVSS 2.0
EPSS 2.75%
Description
The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.
Affected products
No data.
Configuration 1
- 10.04
- 12.04
- 14.04
Configuration 2
- ≤ 1.2.8
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.2.6
- 1.2.7
No data.
Red Hat Enterprise Linux 6
libvirt-0:0.10.2-46.el6_6.2
Fixed · RHSA-2014:1873
Red Hat Enterprise Linux 7
libvirt-0:1.1.1-29.el7_0.3
Fixed · RHSA-2014:1352
Red Hat Enterprise Linux 5
libvirt
Not affected
Red Hat Storage 2
libvirt
Under investigation
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libvirt-0:0.10.2-46.el6_6.2 | Fixed | RHSA-2014:1873 |
| Red Hat Enterprise Linux 7 | libvirt-0:1.1.1-29.el7_0.3 | Fixed | RHSA-2014:1352 |
| Red Hat Enterprise Linux 5 | libvirt | Not affected | n/a |
| Red Hat Storage 2 | libvirt | Under investigation | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of libvirt packages as shipped with Red Hat Enterprise Linux 5. This issue does affect the versions of libvirt packages as shipped with Red Hat Enterprise Linux 6 and 7. Future updates may address this issue in the respective Red Hat Enterprise Linux releases.
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:N/AC:M/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.75% (0.02751) | 85.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.75% (0.02751) | 84.24th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.63% (0.03629) | 86.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.28% (0.08277) | 86.82th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.63% (0.03629) | 87.03th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.69% (0.05691) | 93.22th | v3 (v2023.03.01) |
| Dec 21, 2023 | 3.88% (0.03877) | 91.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.77% (0.02773) | 88.97th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.96% (0.01955) | 78.47th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.96% (0.01955) | 77.97th | v2 (v2022.01.01) |
| Feb 3, 2023 | 3.41% (0.03407) | 84.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.96% (0.01955) | 76.59th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.96% (0.01955) | 55.71th | v2 (v2022.01.01) |
References (14)
- http://libvirt.org/git/?p=libvirt.git%3Ba=commitdiff%3Bh=3e745e8f775dfe6f64f18b5c2fe4791b35d3546b x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-updates/2014-10/msg00014.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2014-10/msg00017.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2014-1352.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/60291 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/60895 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201412-04.xml vendor-advisoryx_refsource_GENTOO
- http://security.libvirt.org/2014/0004.html x_refsource_CONFIRMVendor Advisory
- http://www.debian.org/security/2014/dsa-3038 vendor-advisoryx_refsource_DEBIAN
- http://www.ubuntu.com/usn/USN-2366-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2014-3633 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1141131 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-3633
- https://www.cve.org/CVERecord?id=CVE-2014-3633
Change history (0)
No recorded changes yet.