CVE-2021-45464

Published: Apr 15, 2023Modified: Jun 17, 2026

8.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitability: 2.0 / Impact: 6.0

Source: NVD

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.

Affected (1)

Products: Kvmtool Project: Kvmtool

Kvmtool Project

1 product

Kvmtool

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Kvmtool Project Kvmtool	All versions

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (8)

https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c

Source: cve@mitre.org

Broken Link

https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=39181fc6429f4e9e71473284940e35857b42772a

Source: cve@mitre.org

Patch

https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/

Source: cve@mitre.org

Patch

https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/

Source: cve@mitre.org

ExploitThird Party Advisory

https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c

Source: af854a3a-2127-422b-91ae-364da2661108

Broken Link

https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=39181fc6429f4e9e71473284940e35857b42772a

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

Timeline

No history available yet.