An off-by-one read/write issue was found in the SDHCI device of QEMU.
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-193 and the CVSS impact.
Summary
An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | QEMU | Affected: up to latest v7.1.0-rc4 | — | No fix listed | CNA |
- QEMU Vendor— Affected Affected: up to latest v7.1.0-rc4 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | before 7.1.0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:-:*:*:*:*:*:* | 7.1.0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:rc0:*:*:*:*:*:* | 7.1.0 rc0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:rc1:*:*:*:*:*:* | 7.1.0 rc1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:rc2:*:*:*:*:*:* | 7.1.0 rc2 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:rc3:*:*:*:*:*:* | 7.1.0 rc3 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:7.1.0:rc4:*:*:*:*:*:* | 7.1.0 rc4 | Vulnerable | QEMU |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions before 7.1.0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:-:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:rc0:*:*:*:*:*:* Versions 7.1.0 rc0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:rc1:*:*:*:*:*:* Versions 7.1.0 rc1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:rc2:*:*:*:*:*:* Versions 7.1.0 rc2 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:rc3:*:*:*:*:*:* Versions 7.1.0 rc3 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:7.1.0:rc4:*:*:*:*:*:* Versions 7.1.0 rc4 Vulnerable ·QEMU
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 6 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8 Advanced Virtualization
- Red Hat Enterprise Linux 9
- Red Hat OpenStack Platform 13 (Queens)
Timeline
- 2026-10-02 Threatist record created from CVE-2022-3872
- 2026-10-03 Alias added: GHSA-px5j-xw79-w7p8
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-2022-3872 · CVE Program
- CVE-2022-3872 · NVD
- FIRST EPSS
- GHSA-px5j-xw79-w7p8 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-3872 · Red Hat security data · CC BY 4.0
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