CVE-2021-45464

kvmtool: kvmtool through 39181fc allows an out-of-bounds write, related to virtio/balloon.c and virtio/pci.c

CVE-2021-45464 is fixed in kvmtool on 1 platform, first by kvmtool 0.20170904-1ubuntu0.18.04.1~esm1, released June 29, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
High
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
32nd percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
kvmtool · Ubuntu 18.04.6 LTS (bionic) 0.20170904-1ubuntu0.18.04.1~esm1 kvmtool 0.20170904-1ubuntu0.18.04.1~esm1 Jun 29, 2023
kvmtool · Ubuntu 20.04 LTS (focal) 0.20170904-1ubuntu0.20.04.1~esm1 kvmtool 0.20170904-1ubuntu0.20.04.1~esm1 Jun 29, 2023
kvmtool · Ubuntu 22.04.1 LTS (jammy) 0.20170904-1.1ubuntu0.1~esm2 kvmtool 0.20170904-1.1ubuntu0.1~esm2 Jun 29, 2023

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