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OpenAdvisories
High RHSA-2021:2145 1 CVE

Red Hat Security Advisory: runc security update

Published Sep 13, 2024 · Updated Aug 12, 2026

Ecosystem: Red Hat

Fixed packages 2

ReleasePackageFixed in
Red Hat · Rhel Extras Other 7 rhel_extras_other:7 runc 0:1.0.0-69.rc10.el7_9
Red Hat · Rhel Extras Other 7 rhel_extras_other:7 runc-debuginfo 0:1.0.0-69.rc10.el7_9

Vulnerabilities 1

  • High 7.6
    CVE-2021-30465 EPSS 10%

    mount destinations can be swapped via symlink-exchange to cause mounts outside the rootfs

    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 a…

    buildah runc github.com/opencontainers/runc k3s Debian Ubuntu Azure Linux Alpine Go

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2021-004
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1954736
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2145.json
  • report
    https://access.redhat.com/security/cve/CVE-2021-30465
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2021-30465
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2021-30465
  • article
    https://github.com/opencontainers/runc/security/advisories/GHSA-c3xm-pvg7-gh7r