Vulnerability · Published Apr 1, 2021 · Assigned by redhat
CVE-2021-20291
Medium 6.5
In plain English
A medium-severity security flaw in containers/storage. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.6%top 24.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | buildah | 1.19.9-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | buildah | 1:1.27.0-2.el9 | ALSA-2022:8008 |
| AlmaLinux:8 | buildah-tests | 1.19.9-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | buildah-tests | 1:1.27.0-2.el9 | ALSA-2022:8008 |
| AlmaLinux:8 | cockpit-podman | 29-2.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | cockpit-podman | 29-2.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | conmon | 2:2.0.26-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | conmon | 2:2.0.26-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | container-selinux | 2:2.167.0-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | containernetworking-plugins | 0.9.1-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | containernetworking-plugins | 0.9.1-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | containers-common | 1:1.2.4-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | containers-common | 1:1.2.4-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | crit | 3.15-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | crit | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | crit | 3.15-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | crit | 3.15-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | crit | 3.15-3.module_el8.6.0+2751+06427ca3 | ALSA-2021:4154 |
| AlmaLinux:8 | criu | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | criu | 3.15-3.module_el8.6.0+2751+06427ca3 | ALSA-2021:4154 |
| AlmaLinux:8 | criu | 3.15-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | criu | 3.15-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | criu | 3.15-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-devel | 3.15-3.module_el8.6.0+2751+06427ca3 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-devel | 3.15-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-devel | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-libs | 3.15-3.module_el8.6.0+2751+06427ca3 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-libs | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | criu-libs | 3.15-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | crun | 0.18-2.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | fuse-overlayfs | 1.4.0-2.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | fuse-overlayfs | 1.4.0-2.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | libslirp | 4.3.1-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | libslirp | 4.3.1-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | libslirp | 4.4.0-1.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | libslirp | 4.4.0-1.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | libslirp-devel | 4.4.0-1.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | libslirp-devel | 4.4.0-1.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | libslirp-devel | 4.3.1-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | libslirp-devel | 4.3.1-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | oci-seccomp-bpf-hook | 1.2.0-3.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | oci-seccomp-bpf-hook | 1.2.3-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | oci-seccomp-bpf-hook | 1.2.3-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | oci-seccomp-bpf-hook | 1.2.0-3.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | podman | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | podman | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:8 | podman-catatonit | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | podman-docker | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | podman-docker | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:9 | podman-gvproxy | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:8 | podman-plugins | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | podman-plugins | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:8 | podman-remote | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | podman-remote | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:8 | podman-tests | 3.0.1-7.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | podman-tests | 2:4.2.0-3.el9 | ALSA-2022:7954 |
| AlmaLinux:8 | python3-criu | 3.15-3.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | python3-criu | 3.15-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | python3-criu | 3.15-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | python3-criu | 3.15-3.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | python3-criu | 3.15-3.module_el8.6.0+2751+06427ca3 | ALSA-2021:4154 |
| AlmaLinux:8 | runc | 1.0.0-72.rc92.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | skopeo | 1:1.2.4-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | skopeo | 1:1.2.4-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:9 | skopeo | 2:1.9.2-1.el9 | ALSA-2022:7955 |
| AlmaLinux:8 | skopeo-tests | 1:1.2.4-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | skopeo-tests | 1:1.2.4-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:9 | skopeo-tests | 2:1.9.2-1.el9 | ALSA-2022:7955 |
| AlmaLinux:8 | slirp4netns | 1.1.8-1.module_el8.6.0+2876+9ed4eae2 | ALSA-2021:4154 |
| AlmaLinux:8 | slirp4netns | 1.1.8-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | slirp4netns | 1.1.8-1.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | slirp4netns | 1.1.8-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | toolbox | 0.0.99.3-0.4.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | toolbox | 0.0.99.3-0.4.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | toolbox | 0.0.99.3-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | toolbox | 0.0.99.3-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | toolbox-tests | 0.0.99.3-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| AlmaLinux:8 | toolbox-tests | 0.0.99.3-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | toolbox-tests | 0.0.99.3-0.4.module_el8.5.0+2613+1b78b731 | ALSA-2021:4154 |
| AlmaLinux:8 | toolbox-tests | 0.0.99.3-0.4.module_el8.6.0+2877+8e437bf5 | ALSA-2021:4154 |
| AlmaLinux:8 | udica | 0.2.4-1.module_el8.6.0+2876+9ed4eae2 | ALBA-2022:0348 |
| AlmaLinux:8 | udica | 0.2.4-1.module_el8.5.0+2614+87221ce8 | ALBA-2022:0348 |
| Debian:12 | golang-github-containers-storage | 1.34.1+ds1-1 | DEBIAN-CVE-2021-20291 |
| Debian:13 | golang-github-containers-storage | 1.34.1+ds1-1 | DEBIAN-CVE-2021-20291 |
| Debian:14 | golang-github-containers-storage | 1.34.1+ds1-1 | DEBIAN-CVE-2021-20291 |
| Go | github.com/containers/storage | 1.28.1 | GO-2021-0100 |
| Go | github.com/containers/storage | 1.28.1 | GHSA-7qw8-847f-pggm |
| Rocky Linux:8 | buildah | 0:1.22.3-2.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | cockpit-podman | 0:33-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | conmon | 2:2.0.29-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | conmon | 2:2.0.29-1.module+el8.4.0+643+525e162a | RLSA-2021:4154 |
| Rocky Linux:8 | container-selinux | 2:2.167.0-1.module+el8.5.0+709+440d5e7e | RLSA-2021:4154 |
| Rocky Linux:8 | container-selinux | 2:2.167.0-1.module+el8.4.0+653+ad26b47d | RLSA-2021:4154 |
| Rocky Linux:8 | containernetworking-plugins | 0:1.0.0-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | containers-common | 2:1-2.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | criu | 0:3.15-3.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | criu | 0:3.15-3.module+el8.7.0+1077+0e4f03d4 | RLSA-2021:4154 |
| Rocky Linux:8 | criu | 0:3.15-3.module+el8.6.0+1054+50b00ff4 | RLSA-2021:4154 |
| Rocky Linux:8 | crun | 0:1.0-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | fuse-overlayfs | 0:1.7.1-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | libslirp | 0:4.4.0-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | libslirp | 0:4.4.0-1.module+el8.6.0+1054+50b00ff4 | RLSA-2021:4154 |
| Rocky Linux:8 | libslirp | 0:4.4.0-1.module+el8.7.0+1077+0e4f03d4 | RLSA-2021:4154 |
| Rocky Linux:8 | oci-seccomp-bpf-hook | 0:1.2.3-3.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | oci-seccomp-bpf-hook | 0:1.2.3-3.module+el8.6.0+784+32aef5de | RLSA-2021:4154 |
| Rocky Linux:8 | podman | 0:3.3.1-9.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | python-podman | 0:3.2.0-2.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | runc | 0:1.0.2-1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | skopeo | 1:1.4.2-0.1.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | slirp4netns | 0:1.1.8-1.module+el8.4.0+537+38cf4e42 | RLSA-2021:4154 |
| Rocky Linux:8 | slirp4netns | 0:1.1.8-1.module+el8.5.0+709+440d5e7e | RLSA-2021:4154 |
| Rocky Linux:8 | slirp4netns | 0:1.1.8-1.module+el8.6.0+783+10209741 | RLSA-2021:4154 |
| Rocky Linux:8 | slirp4netns | 0:1.1.8-1.module+el8.7.0+1076+9b1c11c1 | RLSA-2021:4154 |
| Rocky Linux:8 | toolbox | 0:0.0.99.3-0.4.module+el8.6.0+784+32aef5de | RLSA-2021:4154 |
| Rocky Linux:8 | toolbox | 0:0.0.99.3-0.4.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
| Rocky Linux:8 | udica | 0:0.2.5-2.module+el8.5.0+710+4c471e88 | RLSA-2021:4154 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | containers/storage | containers/storage 1.28.1 |
Weakness: CWE-667
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1939485 x_refsource_MISC
- FEDORA-2021-ec00da7faa vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-83b3740389 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-a3703b9dc8 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-c56a213327 vendor-advisory, x_refsource_FEDORA
- https://unit42.paloaltonetworks.com/cve-2021-20291/ x_refsource_MISC