QEMU
At a glance
- Source
- NVD
- EPSS
- EPSS 0.40 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://gitlab.com/qemu-project/qemu/-/issues/770
- https://bugzilla.redhat.com/show_bug.cgi?id=2035002
- https://access.redhat.com/security/cve/CVE-2021-4158
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg857944.html
- https://gitlab.com/qemu-project/qemu/-/commit/9bd6565ccee68f72d5012e24646e12a1c662827e
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-34026
- GCVE · GCVE-0-2021-4158
Affected configurations (NVD CPE)
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*≥ 6.0.0 < 7.0.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| QEMU | affected Affects v6.0.0 and above. |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |