Vulnerability 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.
CVSS Score
8.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kvmtool Project | Kvmtool | - |
Related Weaknesses (CWE)
References
- https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/expBroken Link
- https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=3918Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/Patch
- https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/ExploitThird Party Advisory
- https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/expBroken Link
- https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=3918Patch
- https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/Patch
- https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/ExploitThird Party Advisory
FAQ
What is CVE-2021-45464?
CVE-2021-45464 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-45464?
Check the references section above for vendor advisories and patch information. Affected products include: Kvmtool Project Kvmtool.