← Vulnerability feed

Vulnerability record · CVE-2019-19921 · published 12 February 2020

CVE-2019-19921: Linuxfoundation runc vulnerability

Linuxfoundation · Runc

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.)

7.0 CVSS 3.1 High EPSS 0.43% · top 64.9% CWE-706 · CWE-706
7.0CVSS 3.1 base score, v2 4.4
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
30References
17 Jun 2026Last modified by NVD

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.)

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00018.html Broken LinkMailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0688 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0695 Third Party Advisory
https://github.com/opencontainers/runc/issues/2197 Issue TrackingPatchThird Party Advisory
https://github.com/opencontainers/runc/pull/2190 Issue TrackingThird Party Advisory
https://github.com/opencontainers/runc/releases Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ANUGDBJ7NBUMSUFZUSKU3ZM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DHGVGGMKGZSJ7YO67TGGPFE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNB2UEDIIJCRQW4WJLZOPQJ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FYVE3GB4OG3BNT5DLQHYO4M
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6BF24VCZRFTYBTT3T7HDZU
https://security-tracker.debian.org/tracker/CVE-2019-19921 Third Party Advisory
https://security.gentoo.org/glsa/202003-21 Third Party Advisory
https://usn.ubuntu.com/4297-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00018.html Broken LinkMailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0688 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0695 Third Party Advisory
https://github.com/opencontainers/runc/issues/2197 Issue TrackingPatchThird Party Advisory
https://github.com/opencontainers/runc/pull/2190 Issue TrackingThird Party Advisory
https://github.com/opencontainers/runc/releases Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ANUGDBJ7NBUMSUFZUSKU3ZM
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DHGVGGMKGZSJ7YO67TGGPFE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNB2UEDIIJCRQW4WJLZOPQJ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FYVE3GB4OG3BNT5DLQHYO4M
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I6BF24VCZRFTYBTT3T7HDZU
https://security-tracker.debian.org/tracker/CVE-2019-19921 Third Party Advisory
https://security.gentoo.org/glsa/202003-21 Third Party Advisory
https://usn.ubuntu.com/4297-1/ Third Party Advisory

Track CVE-2019-19921 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2025-32433Erlang/OTP SSH server missing authentication allows remote code executionErlang/OTP SSH servers before OTP-27.3.3, OTP-26.2.5.11 and OTP-25.3.2.20 mishandle SSH protocol messages, letting an unauthenticated attacker execut…KEVEPSS 99%analysed10.0CVE-2025-24201Apple WebKit out-of-bounds write allows sandbox escapeCVE-2025-24201 is an out-of-bounds write in Apple's WebKit that was addressed with improved checks. Maliciously crafted web content may break out of …KEVEPSS 3.8%analysed10.0CVE-2021-44228Apache Log4j2 JNDI lookup remote code executionApache Log4j2 versions 2.0-beta9 through 2.15.0 (excluding 2.12.2, 2.12.3, and 2.3.1) do not protect against attacker-controlled LDAP and other JNDI …KEVEPSS 100%analysed10.0CVE-2019-7609Kibana Timelion visualizer code injection enables remote code executionKibana before 5.6.15 and 6.6.1 contains an arbitrary code execution flaw in the Timelion visualizer. An attacker who can reach the Timelion applicati…KEVEPSS 95%analysed9.9CVE-2019-1003029Jenkins Script Security Plugin sandbox bypass allows code executionThe Jenkins Script Security Plugin 1.53 and earlier fails to properly enforce its Groovy sandbox in GroovySandbox.java and SecureGroovyScript.java, l…KEVEPSS 74%analysed9.9CVE-2019-1003030Jenkins Pipeline Groovy Plugin sandbox bypass allows arbitrary code executionThe Jenkins Pipeline: Groovy Plugin (2.63 and earlier) contains a sandbox bypass in CpsGroovyShell.java. Attackers who can control pipeline scripts c…KEVEPSS 97%analysed9.8CVE-2026-24061GNU Inetutils telnetd argument injection allows remote auth bypasstelnetd in GNU Inetutils through 2.7 fails to sanitize the USER environment variable, so a value such as "-f root" is passed as an argument to login …KEVEPSS 99%analysed9.8CVE-2025-39682Linux kernel TLS zero-length record handling flaw on rx_listThe Linux kernel TLS receive path mishandles zero-length records that arrive from the rx_list, breaking the assumption that a record type change cann…KEVEPSS 2.9%analysed

Source: NIST National Vulnerability Database (record CVE-2019-19921), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.