What’s Vulnerable › Vulnerabilities
CVE-2019-19921
- Severity: high (CVSS 7.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-02-12 · updated 2026-06-17
- Weakness: CWE-706
Description
runc through 1.0.0-rc9 has Incorrect Access Control leading to Escalation of Privileges, related to libcontainer/rootfs_linux.go. To exploit this, an attacker must be able to spawn two containers with custom volume-mount configurations, and be able to run custom images. (This vulnerability does not affect Docker due to an implementation detail that happens to block the attack.)
Affected products
- Canonical Ubuntu Linux: 18.04, 19.10
- Debian Linux: 9.0, 10.0
- opencontainers runc: through 0.1.1; 1.0.0-rc1, 1.0.0-rc2, 1.0.0-rc3, 1.0.0-rc4, 1.0.0-rc5, 1.0.0-rc6 (+3)
- openSUSE Leap: 15.1
- Red Hat OpenShift Container Platform 4.18: 4.1, 4.2
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00018.html
- https://access.redhat.com/errata/RHSA-2020:0688
- https://access.redhat.com/errata/RHSA-2020:0695
- https://github.com/opencontainers/runc/issues/2197
- https://github.com/opencontainers/runc/pull/2190
- https://github.com/opencontainers/runc/releases
- https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ANUGDBJ7NBUMSUFZUSKU3ZMQYZ2Z3STN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DHGVGGMKGZSJ7YO67TGGPFEHBYMS63VF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNB2UEDIIJCRQW4WJLZOPQJZXCVSXMLD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FYVE3GB4OG3BNT5DLQHYO4M5SXX33AQ5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6BF24VCZRFTYBTT3T7HDZUOTKOTNPLZ/
Get alerted when CVE-2019-19921 or the next vulnerability affects your stack