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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
mitreCNA
---
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CVEADP
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CISA-ADPADP
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
VendorProductVersion
kvmtool_projectkvmtool
-
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kvmtool
noble
dne
mantic
dne
lunar
dne
kinetic
ignored
jammy
needs-triage
impish
ignored
focal
needs-triage
bionic
needs-triage
xenial
needs-triage
trusty
ignored
Common Weakness Enumeration
References
https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=39181fc6429f4e9e71473284940e35857b42772a
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/
https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/
https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=39181fc6429f4e9e71473284940e35857b42772a
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/
https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/