CVE-2023-32684

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Summary

CVECVE-2023-32684
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-05-30 18:15:00 UTC
Updated2023-06-06 20:07:00 UTC
DescriptionLima launches Linux virtual machines, typically on macOS, for running containerd. Prior to version 0.16.0, a virtual machine instance with a malicious disk image could read a single file on the host filesystem, even when no filesystem is mounted from the host. The official templates of Lima and the well-known third party products (Colima, Rancher Desktop, and Finch) are unlikely to be affected by this issue. To exploit this issue, the attacker has to embed the target file path (an absolute or a relative path from the instance directory) in a malicious disk image, as the qcow2 (or vmdk) backing file path string. As Lima refuses to run as the root, it is practically impossible for the attacker to read the entire host disk via `/dev/rdiskN`. Also, practically, the attacker cannot read at least the first 512 bytes (MBR) of the target file. The issue has been patched in Lima in version 0.16.0 by prohibiting using a backing file path in the VM base image.

Risk And Classification

Problem Types: CWE-552

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linuxfoundation Lima All All All All

References

ReferenceSourceLinkTags
Release v0.16.0 · lima-vm/lima · GitHub MISC github.com
Merge pull request from GHSA-f7qw-jj9c-rpq9 · lima-vm/lima@01dbd4d · GitHub MISC github.com
A malicious disk image could read a single file on the host filesystem as a qcow2/vmdk backing file · Advisory · lima-vm/lima · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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