Multiple heap-based buffer overflows in the virtio-blk driver (hw/virtio-blk.c) in…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2011:0534 Released 2011-05-19 · Red Hat rating Importantqemu-kvm security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) qemu-img-2:0.12.1.2-2.160.el6, qemu-kvm-2:0.12.1.2-2.160.el6, qemu-kvm-tools-2:0.12.1.2-2.160.el6
- Red Hat Enterprise Linux HPC Node (v. 6) qemu-img-2:0.12.1.2-2.160.el6, qemu-kvm-2:0.12.1.2-2.160.el6, qemu-kvm-tools-2:0.12.1.2-2.160.el6
- Red Hat Enterprise Linux Server (v. 6) qemu-img-2:0.12.1.2-2.160.el6, qemu-kvm-2:0.12.1.2-2.160.el6, qemu-kvm-tools-2:0.12.1.2-2.160.el6
- Red Hat Enterprise Linux Workstation (v. 6) qemu-img-2:0.12.1.2-2.160.el6, qemu-kvm-2:0.12.1.2-2.160.el6, qemu-kvm-tools-2:0.12.1.2-2.160.el6
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2011:0534 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2011:0534 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2011:0534 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2011:0534 |
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1750
- 2026-10-03 Alias added: GHSA-wj46-785g-vq37
References
More Qemu vulnerabilities
- TI-2024-16148 QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI… CVSS 3.1HIGH 8.8
- TI-2022-02736 Uncontrolled resource consumption in QEMU CVSS 3.1HIGH 7.8
- TI-2023-02681 Qemu: 9pfs: improper access control on special files CVSS 3.1HIGH 7.1
- TI-2019-09678 The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command… CVSS 3.0CRITICAL 9.8
- TI-2024-03326 Qemu-kvm: net: assertion failure in update_sctp_checksum() CVSS 3.1MEDIUM 5.5
- TI-2023-22631 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2011-1750 · CVE Program
- CVE-2011-1750 · NVD
- FIRST EPSS
- GHSA-wj46-785g-vq37 · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1750 · Red Hat security data · CC BY 4.0
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