GitHub Advisoryadvisory · Go

GHSA-f7qw-jj9c-rpq9 In Lima, a malicious disk image could read a single file on the host filesystem as a qcow2/vmdk backing file

LOW Published 2023-05-31 Modified 2023-05-31 Official page ↗
Aliases
CVE-2023-32684
Ecosystem
Go
Packages
github.com/lima-vm/lima
Severity
Low
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
Weaknesses
CWE-552
Reviewed
2023-05-31

Affected packages

• Go github.com/lima-vm/lima: < 0.16.0 → fixed in 0.16.0

Description

> Note > > 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. Impact 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. 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. Patches Patched in Lima v0.16.0, by prohibiting using a backing file path in the VM base image. Workarounds Do not use an untrusted disk image.

Related

Alias · CVE (1)

  • CVE-2023-32684 Lima launches Linux virtual machines, typically on macOS, for running containerd. vulnerability

Weakness · CWE (1)

  • CWE-552 Files or Directories Accessible to External Parties weakness

References