CVSS 3.3 · Low EPSS 0,19%
Kerentanan UNIX Symbolic Link (Symlink) Following pada linuxfoundation runc. Skor CVSS 3.1 3.3 (Low) menurut github.com.
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions prior to 1.3.6, 1.4.0-rc.1, 1.4.0-rc.12, 1.5.0-rc.1, and 1.5.0-rc.1, when setting up the container rootfs, setupPtmx and setupDevSymlinks call os.Remove and os.Symlink with a filepath.Join string which allow an image with /dev as a symlink to trick runc into deleting files called ptmx on the host or creating a hardcoded set of symlinks with specific names and targets in an arbitrary pre-existing host directory. This issue is not exploitable under Docker, because Docker creates a top-level read-only layer that masks any malicious /dev symlink present in the container image — unlike some other Linux container tooling, whose higher-level runtimes built on runc remain exposed to exploitation via a malicious image. This issue has been fixed in versions 1.3.6, 1.4.3 and 1.5.0.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linuxfoundation | runc | Semua versi sebelum 1.3.6 |
| linuxfoundation | runc | Versi 1.4.0 hingga sebelum 1.4.3 |
| linuxfoundation | runc | Versi 1.5.0 rc1 |
| linuxfoundation | runc | Versi 1.5.0 rc2 |