Packages
- kvmtool - Native Linux KVM tool
Details
It was discovered that kvmtool did not properly manage memory under certain
circumstances. A malicious guest attacker could use this issue to cause
kvmtool to crash, leading to a denial of service, or possibly execute
arbitrary code on the host system. (CVE-2021-45464)
It was discovered that kvmtool incorrectly handled the 9p passthrough file
system. A malicious guest attacker could possibly use this issue to open
special files, escape the exported 9p tree, and execute arbitrary code on
the host system. (CVE-2023-2861)
It was discovered that kvmtool did not properly manage memory under certain
circumstances. A malicious guest attacker could use this issue to cause
kvmtool to crash, leading to a denial of service, or possibly execute
arbitrary code on the host system. (CVE-2021-45464)
It was discovered that kvmtool incorrectly handled the 9p passthrough file
system. A malicious guest attacker could possibly use this issue to open
special files, escape the exported 9p tree, and execute arbitrary code on
the host system. (CVE-2023-2861)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 22.04 LTS jammy | kvmtool – 0.20170904-1.1ubuntu0.1~esm2 | ||
| 20.04 LTS focal | kvmtool – 0.20170904-1ubuntu0.20.04.1~esm1 | ||
| 18.04 LTS bionic | kvmtool – 0.20170904-1ubuntu0.18.04.1~esm1 | ||
| 16.04 LTS xenial | kvmtool – 0.20151104-1ubuntu0.1~esm1 | ||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.