virtio-blk: heap buffer overflow caused by unaligned requests
Published Jun 21, 2012
7.4
HIGHCVSS 2.0
EPSS 0.72%
Description
Multiple heap-based buffer overflows in the virtio-blk driver (hw/virtio-blk.c) in qemu-kvm 0.14.0 allow local guest users to cause a denial of service (guest crash) and possibly gain privileges via a (1) write request to the virtio_blk_handle_write function or (2) read request to the virtio_blk_handle_read function that is not properly aligned.
Affected products
Remediation
Red Hat statement
This issue does not affect 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:S/C:C/I:C/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 | 0.72% (0.00718) | 52.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.72% (0.00718) | 48.82th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.47% (0.00466) | 62.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00061) | 27.92th | v3 (v2023.03.01) |
| May 31, 2024 | 0.06% (0.00061) | 25.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00061) | 23.77th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (20)
- http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=52c050236eaa4f0b5e1d160cd66dc18106445c4d x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html vendor-advisoryx_refsource_FEDORA
- http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03015.html mailing-listx_refsource_MLIST
- http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03019.html mailing-listx_refsource_MLIST
- http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2011-0534.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/44132 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44393 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44658 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44660 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/44900 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.osvdb.org/73756 vdb-entryx_refsource_OSVDB
- https://access.redhat.com/security/cve/CVE-2011-1750 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=698906 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67062 vdb-entryx_refsource_XF
- https://hermes.opensuse.org/messages/8572547 vendor-advisoryx_refsource_SUSE
- https://nvd.nist.gov/vuln/detail/CVE-2011-1750
- https://www.cve.org/CVERecord?id=CVE-2011-1750
- https://www.debian.org/security/2011/dsa-2230 vendor-advisoryx_refsource_DEBIAN
- https://www.ubuntu.com/usn/USN-1145-1/ vendor-advisoryx_refsource_UBUNTU
Change history (0)
No recorded changes yet.