8.8

CVE-2021-45464

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Kvmtool Project ≫ Kvmtool Version-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.38% 0.298
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 8.8 2 6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.8 2 6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

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

https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c
Broken Link
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/commit/?id=39181fc6429f4e9e71473284940e35857b42772a
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/
Patch
https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/
Third Party Advisory
Exploit