Libvirt: improper locking in virstoragepoolobjlistsearch may lead to denial of service
Priority LOW 30CWE-667Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
A flaw was found in libvirt. The virStoragePoolObjListSearch function does not return a locked pool as expected, resulting in a race condition and denial of service when attempting to lock the same object from another thread. This issue could allow clients connecting to the read-only socket to crash the libvirt daemon.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0076 55th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 |
|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 | — | 9.5.0-7.el9_3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization | — | — | Not affected | CNA |
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 9.5.0-7.el9_3 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 Advanced Virtualization VendorRed Hat Affected — Fixed in — Not affected CNA
Remediation
Red Hat 1 advisory
- RHSA-2023:6409 Released 2023-11-07 · Red Hat rating Moderatelibvirt security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 9) libvirt-client-qemu-9.5.0-7.el9_3, libvirt-daemon-plugin-sanlock-9.5.0-7.el9_3, libvirt-devel-9.5.0-7.el9_3 +1
- Red Hat Enterprise Linux AppStream (v. 9) libvirt-9.5.0-7.el9_3, libvirt-client-9.5.0-7.el9_3, libvirt-daemon-9.5.0-7.el9_3 +24
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2023:6409 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:6409 |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 8 Advanced Virtualization
Timeline
- 2026-10-02 Threatist record created from CVE-2023-3750
- 2026-10-03 Alias added: GHSA-35p2-9fg3-f2p2
References
More Red Hat Enterprise Linux vulnerabilities
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- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
Sources
- CVE-2023-3750 · CVE Program
- CVE-2023-3750 · NVD
- FIRST EPSS
- GHSA-35p2-9fg3-f2p2 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-3750 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences