Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2021-30465

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

CVSS v3:

  • Severity: High
  • Score: 8.5
  • AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6
  • AV:N/AC:M/Au:S/C:P/I:P/A:P
Software From Fixed in
linuxfoundation / runc 1.0.0-rc7 1.0.0-rc7.x
linuxfoundation / runc 1.0.0-rc6 1.0.0-rc6.x
linuxfoundation / runc 1.0.0-rc5 1.0.0-rc5.x
linuxfoundation / runc 1.0.0-rc4 1.0.0-rc4.x
linuxfoundation / runc 1.0.0-rc3 1.0.0-rc3.x
linuxfoundation / runc 1.0.0-rc2 1.0.0-rc2.x
linuxfoundation / runc 1.0.0-rc1 1.0.0-rc1.x
linuxfoundation / runc 1.0.0-rc8 1.0.0-rc8.x
linuxfoundation / runc 1.0.0-rc9 1.0.0-rc9.x
linuxfoundation / runc - 0.1.1.x
linuxfoundation / runc 1.0.0-rc94 1.0.0-rc94.x
linuxfoundation / runc 1.0.0-rc10 1.0.0-rc10.x
linuxfoundation / runc 1.0.0-rc90 1.0.0-rc90.x
linuxfoundation / runc 1.0.0-rc91 1.0.0-rc91.x
linuxfoundation / runc 1.0.0-rc92 1.0.0-rc92.x
linuxfoundation / runc 1.0.0-rc93 1.0.0-rc93.x
fedoraproject / fedora 33 33.x
fedoraproject / fedora 34 34.x
github.com/opencontainers/runc - 1.0.0-rc95