CVE-2021-45464
HIGHCVSS 8.8/10EPSS 0.38%
Last modified
CVE-2021-45464 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. kvmtool through 39181fc allows an out-of-bounds write, related to virtio/balloon.c and virtio/pci.c. This allows a guest OS user to execute arbitrary code on the host machine.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
Description
kvmtool through 39181fc allows an out-of-bounds write, related to virtio/balloon.c and virtio/pci.c. This allows a guest OS user to execute arbitrary code on the host machine.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kvmtool Project | Kvmtool | All versions |
References
- https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/Exploit, Third Party Advisory
- https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-45464?
kvmtool through 39181fc allows an out-of-bounds write, related to virtio/balloon.c and virtio/pci.c. This allows a guest OS user to execute arbitrary code on the host machine.
How severe is CVE-2021-45464?
CVE-2021-45464 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45464?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-45464?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST