Libvirt: off-by-one error in udevlistinterfacesbystatus()
Priority LOW 25CWE-193Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.
Summary
An off-by-one error flaw was found in the udevListInterfacesByStatus() function in libvirt when the number of interfaces exceeds the size of the `names` array. This issue can be reproduced by sending specially crafted data to the libvirt daemon, allowing an unprivileged client to perform a denial of service attack by causing the libvirt daemon to crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00401 34th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 4 without a fix
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 |
|---|---|---|---|---|---|
| — | libvirt | 9.7.0 | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 10.0.0-6.2.el9_4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization | — | — | No fix listed | CNA |
- libvirt Vendor— Affected 9.7.0 Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 10.0.0-6.2.el9_4 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 8 Advanced Virtualization VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:9::crb | 9 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8 | 8 | — | Red Hat |
| cpe:/a:redhat:advanced_virtualization:8::el8 | 8 | — | Red Hat |
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:9::crb Versions 9 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8 Versions 8 — ·Red Hat
- cpe:/a:redhat:advanced_virtualization:8::el8 Versions 8 — ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2024:2560 Released 2024-04-30 · Red Hat rating Moderatelibvirt security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 9) libvirt-10.0.0-6.2.el9_4, libvirt-client-10.0.0-6.2.el9_4, libvirt-client-qemu-10.0.0-6.2.el9_4 +25
- Red Hat Enterprise Linux CRB (v. 9) libvirt-daemon-plugin-sanlock-10.0.0-6.2.el9_4, libvirt-devel-10.0.0-6.2.el9_4, libvirt-docs-10.0.0-6.2.el9_4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 Advanced Virtualization | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2560 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:2560 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-1441
- 2026-10-03 Alias added: GHSA-2cj9-wjmr-5w57
References
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Sources
- CVE-2024-1441 · CVE Program
- CVE-2024-1441 · NVD
- FIRST EPSS
- GHSA-2cj9-wjmr-5w57 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-1441 · 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