Описание
Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork
This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues:
Update Docker to 19.03.15-ce:
- CVE-2021-21284: potential privilege escalation when the root user in the remapped namespace has access to the host filesystem (bsc#1181732)
- CVE-2021-21285: malformed Docker image manifest crashes the dockerd daemon (bsc#1181730)
- CVE-2020-15157: containerd: credentials leaking during image pull (bsc#1177598)
Список пакетов
Image SLES12-SP5-Azure-Basic-On-Demand
Image SLES12-SP5-Azure-Standard-On-Demand
Image SLES12-SP5-EC2-ECS-On-Demand
Image SLES12-SP5-EC2-On-Demand
Image SLES12-SP5-GCE-On-Demand
SUSE Linux Enterprise Module for Containers 12
Ссылки
- Link for SUSE-SU-2021:0445-1
- E-Mail link for SUSE-SU-2021:0445-1
- SUSE Security Ratings
- SUSE Bug 1065609
- SUSE Bug 1153367
- SUSE Bug 1157330
- SUSE Bug 1158590
- SUSE Bug 1176708
- SUSE Bug 1177598
- SUSE Bug 1178801
- SUSE Bug 1180401
- SUSE Bug 1181730
- SUSE Bug 1181732
- SUSE CVE CVE-2020-15157 page
- SUSE CVE CVE-2021-21284 page
- SUSE CVE CVE-2021-21285 page
Описание
In containerd (an industry-standard container runtime) before version 1.2.14 there is a credential leaking vulnerability. If a container image manifest in the OCI Image format or Docker Image V2 Schema 2 format includes a URL for the location of a specific image layer (otherwise known as a "foreign layer"), the default containerd resolver will follow that URL to attempt to download it. In v1.2.x but not 1.3.0 or later, the default containerd resolver will provide its authentication credentials if the server where the URL is located presents an HTTP 401 status code along with registry-specific HTTP headers. If an attacker publishes a public image with a manifest that directs one of the layers to be fetched from a web server they control and they trick a user or system into pulling the image, they can obtain the credentials used for pulling that image. In some cases, this may be the user's username and password for the registry. In other cases, this may be the credentials attached to the cloud virtual instance which can grant access to other cloud resources in the account. The default containerd resolver is used by the cri-containerd plugin (which can be used by Kubernetes), the ctr development tool, and other client programs that have explicitly linked against it. This vulnerability has been fixed in containerd 1.2.14. containerd 1.3 and later are not affected. If you are using containerd 1.3 or later, you are not affected. If you are using cri-containerd in the 1.2 series or prior, you should ensure you only pull images from trusted sources. Other container runtimes built on top of containerd but not using the default resolver (such as Docker) are not affected.
Затронутые продукты
Ссылки
- CVE-2020-15157
- SUSE Bug 1177598
Описание
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.
Затронутые продукты
Ссылки
- CVE-2021-21284
- SUSE Bug 1181732
Описание
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability in which pulling an intentionally malformed Docker image manifest crashes the dockerd daemon. Versions 20.10.3 and 19.03.15 contain patches that prevent the daemon from crashing.
Затронутые продукты
Ссылки
- CVE-2021-21285
- SUSE Bug 1181730