Vulnerability DatabaseCVE-2021-45464
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CVE-2021-45464
April 15, 2023
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.
Related Resources (6)
https://cdn.discordapp.com/attachments/921419715170164776/921882173517230100/exploit.c
https://www.kalmarunionen.dk/writeups/2021/hxp-2021/lkvm/
https://security-tracker.debian.org/tracker/CVE-2021-45464
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-45464
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/
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CVSS v4
Base Score:
9.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.06