Vulnerability · Published May 27, 2021 · Assigned by mitre

CVE-2021-30465

High 8.5

In plain English

A high-severity security flaw in the cockpit-podman package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 10.2% (higher than 96% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.5High
Exploit odds (30 days)10.2%top 4.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8cockpit-podman29-2.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8cockpit-podman29-2.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8cockpit-podman11-1.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8cockpit-podman11-1.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8conmon2:2.0.15-1.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8conmon2:2.0.15-1.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8conmon2:2.0.26-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8conmon2:2.0.26-3.module_el8.7.0+3406+a17c4180ALSA-2021:2371
AlmaLinux:8container-selinux2:2.130.0-1.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8container-selinux2:2.130.0-1.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8containernetworking-plugins0.9.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8containernetworking-plugins0.8.3-4.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8containernetworking-plugins0.8.3-4.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8containernetworking-plugins0.9.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8containers-common1:0.1.41-4.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8containers-common1:0.1.41-4.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8crit3.12-9.module_el8.5.0+119+9a9ec082ALSA-2021:2291
AlmaLinux:8crit3.12-9.module_el8.4.0+2496+12421f43ALSA-2021:2291
AlmaLinux:8crit3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8crit3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8crit3.12-9.module_el8.3.0+2044+12421f43ALSA-2021:2291
AlmaLinux:8criu3.12-9.module_el8.3.0+2044+12421f43ALSA-2021:2291
AlmaLinux:8criu3.12-9.module_el8.5.0+119+9a9ec082ALSA-2021:2291
AlmaLinux:8criu3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8criu3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8criu3.12-9.module_el8.4.0+2496+12421f43ALSA-2021:2291
AlmaLinux:8fuse-overlayfs1.4.0-2.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8fuse-overlayfs0.7.8-1.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8fuse-overlayfs0.7.8-1.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8libslirp4.3.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8libslirp4.3.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8libslirp-devel4.3.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8libslirp-devel4.3.1-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8python-podman-api1.2.0-0.2.gitd0a45fe.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8python-podman-api1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8python3-criu3.12-9.module_el8.3.0+2044+12421f43ALSA-2021:2291
AlmaLinux:8python3-criu3.12-9.module_el8.4.0+2496+12421f43ALSA-2021:2291
AlmaLinux:8python3-criu3.12-9.module_el8.5.0+119+9a9ec082ALSA-2021:2291
AlmaLinux:8python3-criu3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8python3-criu3.15-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8skopeo1:0.1.41-4.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8skopeo1:0.1.41-4.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8skopeo-tests1:0.1.41-4.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8skopeo-tests1:0.1.41-4.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8slirp4netns1.1.8-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
AlmaLinux:8slirp4netns0.4.2-3.git21fdece.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8slirp4netns0.4.2-3.git21fdece.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8slirp4netns1.1.8-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8toolbox0.0.7-1.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8toolbox0.0.7-1.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8udica0.2.4-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2370
AlmaLinux:8udica0.2.1-2.module_el8.5.0+2635+e4386a39ALSA-2021:2291
AlmaLinux:8udica0.2.1-2.module_el8.5.0+108+00865455ALSA-2021:2291
AlmaLinux:8udica0.2.4-1.module_el8.6.0+2876+9ed4eae2ALSA-2021:2371
Alpine:v3.20k3s1.21.1.1-r0ALPINE-CVE-2021-30465
Alpine:v3.21k3s1.21.1.1-r0ALPINE-CVE-2021-30465
Alpine:v3.22k3s1.21.1.1-r0ALPINE-CVE-2021-30465
Alpine:v3.23k3s1.21.1.1-r0ALPINE-CVE-2021-30465
Alpine:v3.24k3s1.21.1.1-r0ALPINE-CVE-2021-30465
Alpine:v3.20runc1.0.0_rc95-r0ALPINE-CVE-2021-30465
Alpine:v3.21runc1.0.0_rc95-r0ALPINE-CVE-2021-30465
Alpine:v3.22runc1.0.0_rc95-r0ALPINE-CVE-2021-30465
Alpine:v3.23runc1.0.0_rc95-r0ALPINE-CVE-2021-30465
Alpine:v3.24runc1.0.0_rc95-r0ALPINE-CVE-2021-30465
Debian:12runc1.0.0~rc93+ds1-5DEBIAN-CVE-2021-30465
Debian:13runc1.0.0~rc93+ds1-5DEBIAN-CVE-2021-30465
Debian:14runc1.0.0~rc93+ds1-5DEBIAN-CVE-2021-30465
Gogithub.com/opencontainers/runc1.0.0-rc95GHSA-c3xm-pvg7-gh7r
Gogithub.com/opencontainers/runc1.0.0-rc95GO-2022-0914
Rocky Linux:8buildah0:1.19.7-2.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8buildah0:1.19.7-1.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8buildah0:1.11.6-8.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8cockpit-podman0:11-1.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8cockpit-podman0:11-1.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8cockpit-podman0:11-1.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8cockpit-podman0:29-2.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8cockpit-podman0:29-2.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8cockpit-podman0:29-2.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8cockpit-podman0:29-2.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8cockpit-podman0:29-2.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8cockpit-podman0:29-2.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8cockpit-podman0:29-2.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8cockpit-podman0:29-2.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8conmon2:2.0.26-3.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8conmon2:2.0.15-1.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8conmon2:2.0.15-1.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8conmon2:2.0.15-1.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8conmon2:2.0.26-1.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8conmon2:2.0.26-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8conmon2:2.0.26-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8conmon2:2.0.26-3.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8container-selinux2:2.158.0-1.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8container-selinux2:2.130.0-1.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8container-selinux2:2.130.0-1.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8container-selinux2:2.130.0-1.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8container-selinux2:2.162.0-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8containernetworking-plugins0:0.8.3-4.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8containernetworking-plugins0:0.8.3-4.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8containernetworking-plugins0:0.8.3-4.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8containernetworking-plugins0:0.9.1-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8criu0:3.15-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8criu0:3.12-9.module+el8.5.0+681+c9a1951fRLSA-2021:2291
Rocky Linux:8criu0:3.15-1.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8criu0:3.15-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8criu0:3.15-1.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8criu0:3.15-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8criu0:3.12-9.module+el8.4.0+557+48ba8b2fRLSA-2021:2291
Rocky Linux:8criu0:3.15-1.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8criu0:3.15-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8criu0:3.15-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8crun0:0.18-2.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8crun0:0.18-2.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8crun0:0.18-2.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8crun0:0.18-2.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8fuse-overlayfs0:0.7.8-1.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8fuse-overlayfs0:1.4.0-2.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8fuse-overlayfs0:1.4.0-2.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8fuse-overlayfs0:1.4.0-2.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8fuse-overlayfs0:0.7.8-1.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8fuse-overlayfs0:1.4.0-2.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8fuse-overlayfs0:0.7.8-1.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8fuse-overlayfs0:1.4.0-3.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8libslirp0:4.3.1-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8libslirp0:4.3.1-1.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8libslirp0:4.3.1-1.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8libslirp0:4.3.1-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8libslirp0:4.3.1-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8libslirp0:4.3.1-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8libslirp0:4.3.1-1.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8libslirp0:4.3.1-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8oci-seccomp-bpf-hook0:1.2.0-1.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8oci-seccomp-bpf-hook0:1.2.0-2.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8podman0:3.0.1-6.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8podman0:3.0.1-6.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8podman0:3.0.1-7.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8podman0:1.6.4-26.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8podman0:3.0.1-7.module+el8.5.0+734+8397cf81RLSA-2021:2371
Rocky Linux:8podman0:1.6.4-26.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8python-podman-api0:1.2.0-0.2.gitd0a45fe.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8python-podman-api0:1.2.0-0.2.gitd0a45fe.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8python-podman-api0:1.2.0-0.2.gitd0a45fe.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8runc0:1.0.0-65.rc10.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8runc0:1.0.0-71.rc92.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8runc0:1.0.0-73.rc93.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8skopeo1:0.1.41-4.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8skopeo1:0.1.41-4.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8skopeo1:0.1.41-4.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8skopeo1:1.2.2-10.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8skopeo1:1.2.2-10.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8skopeo1:1.2.2-7.module+el8.4.0+558+7340b765RLSA-2021:2370
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.4.0+537+38cf4e42RLSA-2021:2370
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.4.0+537+38cf4e42RLSA-2021:2371
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8slirp4netns0:0.4.2-3.git21fdece.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8slirp4netns0:0.4.2-3.git21fdece.module+el8.4.0+536+994a2182RLSA-2021:2291
Rocky Linux:8slirp4netns0:0.4.2-3.git21fdece.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8slirp4netns0:1.1.8-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8toolbox0:0.0.8-1.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8toolbox0:0.0.7-1.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8toolbox0:0.0.8-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8toolbox0:0.0.7-1.module+el8.5.0+708+6758137dRLSA-2021:2291
Rocky Linux:8toolbox0:0.0.7-1.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8udica0:0.2.4-1.module+el8.6.0+783+10209741RLSA-2021:2371
Rocky Linux:8udica0:0.2.4-1.module+el8.5.0+709+440d5e7eRLSA-2021:2371
Rocky Linux:8udica0:0.2.4-1.module+el8.4.0+556+40122d08RLSA-2021:2371
Rocky Linux:8udica0:0.2.4-1.module+el8.6.0+783+10209741RLSA-2021:2370
Rocky Linux:8udica0:0.2.4-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2371
Rocky Linux:8udica0:0.2.1-2.module+el8.4.0+559+c02fa3b2RLSA-2021:2291
Rocky Linux:8udica0:0.2.4-1.module+el8.5.0+709+440d5e7eRLSA-2021:2370
Rocky Linux:8udica0:0.2.1-2.module+el8.5.0+770+e2f49861RLSA-2021:2291
Rocky Linux:8udica0:0.2.4-1.module+el8.4.0+556+40122d08RLSA-2021:2370
Rocky Linux:8udica0:0.2.4-1.module+el8.7.0+1076+9b1c11c1RLSA-2021:2370
Rocky Linux:8udica0:0.2.1-2.module+el8.5.0+708+6758137dRLSA-2021:2291

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References