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Vulnerability · Published Jul 5, 2022 · Assigned by XEN

CVE-2022-33744

Medium 4.7

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.7Medium
Exploit odds (30 days)0.3%top 74.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.18.14-1DEBIAN-CVE-2022-33744
Debian:13linux5.18.14-1DEBIAN-CVE-2022-33744
Debian:14linux5.18.14-1DEBIAN-CVE-2022-33744
Ubuntu:22.04:LTSlinux5.15.0-48.54UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux5.15.0-48.54USN-5624-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1020.24UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-aws5.15.0-1020.24USN-5624-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1020.25UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-azure5.15.0-1020.25USN-5624-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-gcp5.15.0-1018.24UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-gcp5.15.0-1018.24USN-5633-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1016.19USN-5633-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1016.19UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1003.5UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1003.5USN-5635-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1015.17USN-5683-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1015.17UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1016.21UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1016.21USN-5655-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1018.22UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-kvm5.15.0-1018.22USN-5624-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-48.54UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-48.54USN-5624-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-oracle5.15.0-1018.23USN-5640-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1018.23UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-raspi5.15.0-1015.17UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-raspi5.15.0-1015.17USN-5633-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSlinux-riscv5.15.0-1019.22UBUNTU-CVE-2022-33744
Ubuntu:22.04:LTSxenno fix listedUBUNTU-CVE-2022-33744
Ubuntu:24.04:LTSxenno fix listedUBUNTU-CVE-2022-33744
Ubuntu:25.10xenno fix listedUBUNTU-CVE-2022-33744
Ubuntu:26.04:LTSxenno fix listedUBUNTU-CVE-2022-33744
Ubuntu:26.10xenno fix listedUBUNTU-CVE-2022-33744

Affected products (as reported)

VendorProductVersions
Linux Linux see references

References