Описание
Security update for containerd, docker
This update for containerd, docker fixes the following issues:
- CVE-2021-41089: Fixed 'cp' can chmod host files (bsc#1191015).
- CVE-2021-41091: Fixed flaw that could lead to data directory traversal in moby (bsc#1191434).
- CVE-2021-41092: Fixed exposed user credentials with a misconfigured configuration file (bsc#1191334).
- CVE-2021-41103: Fixed file access to local users in containerd (bsc#1191121).
- CVE-2021-41190: Fixed OCI manifest and index parsing confusion (bsc#1193273).
Список пакетов
Image SLES15-Azure-BYOS
Image SLES15-SAP-Azure-BYOS
Image SLES15-SAP-EC2-HVM
Image SLES15-SP1-Azure-BYOS
Image SLES15-SP1-Azure-HPC-BYOS
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Image SLES15-SP1-CHOST-BYOS-GCE
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SUSE Linux Enterprise Micro 5.0
SUSE Linux Enterprise Micro 5.1
SUSE Linux Enterprise Module for Containers 15 SP3
Ссылки
- Link for SUSE-SU-2022:0334-1
- E-Mail link for SUSE-SU-2022:0334-1
- SUSE Security Ratings
- SUSE Bug 1191015
- SUSE Bug 1191121
- SUSE Bug 1191334
- SUSE Bug 1191434
- SUSE Bug 1193273
- SUSE CVE CVE-2021-41089 page
- SUSE CVE CVE-2021-41091 page
- SUSE CVE CVE-2021-41092 page
- SUSE CVE CVE-2021-41103 page
- SUSE CVE CVE-2021-41190 page
Описание
Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host's filesystem, widening access to others. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers do not need to be restarted.
Затронутые продукты
Ссылки
- CVE-2021-41089
- SUSE Bug 1191015
- SUSE Bug 1191355
Описание
Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where the data directory (typically `/var/lib/docker`) contained subdirectories with insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as `setuid`), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This bug has been fixed in Moby (Docker Engine) 20.10.9. Users should update to this version as soon as possible. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade limit access to the host to trusted users. Limit access to host volumes to trusted containers.
Затронутые продукты
Ссылки
- CVE-2021-41091
- SUSE Bug 1191355
- SUSE Bug 1191434
Описание
Docker CLI is the command line interface for the docker container runtime. A bug was found in the Docker CLI where running `docker login my-private-registry.example.com` with a misconfigured configuration file (typically `~/.docker/config.json`) listing a `credsStore` or `credHelpers` that could not be executed would result in any provided credentials being sent to `registry-1.docker.io` rather than the intended private registry. This bug has been fixed in Docker CLI 20.10.9. Users should update to this version as soon as possible. For users unable to update ensure that any configured credsStore or credHelpers entries in the configuration file reference an installed credential helper that is executable and on the PATH.
Затронутые продукты
Ссылки
- CVE-2021-41092
- SUSE Bug 1191334
- SUSE Bug 1191355
Описание
containerd is an open source container runtime with an emphasis on simplicity, robustness and portability. A bug was found in containerd where container root directories and some plugins had insufficiently restricted permissions, allowing otherwise unprivileged Linux users to traverse directory contents and execute programs. When containers included executable programs with extended permission bits (such as setuid), unprivileged Linux users could discover and execute those programs. When the UID of an unprivileged Linux user on the host collided with the file owner or group inside a container, the unprivileged Linux user on the host could discover, read, and modify those files. This vulnerability has been fixed in containerd 1.4.11 and containerd 1.5.7. Users should update to these version when they are released and may restart containers or update directory permissions to mitigate the vulnerability. Users unable to update should limit access to the host to trusted users. Update directory permission on container bundles directories.
Затронутые продукты
Ссылки
- CVE-2021-41103
- SUSE Bug 1191121
- SUSE Bug 1191355
Описание
The OCI Distribution Spec project defines an API protocol to facilitate and standardize the distribution of content. In the OCI Distribution Specification version 1.0.0 and prior, the Content-Type header alone was used to determine the type of document during push and pull operations. Documents that contain both "manifests" and "layers" fields could be interpreted as either a manifest or an index in the absence of an accompanying Content-Type header. If a Content-Type header changed between two pulls of the same digest, a client may interpret the resulting content differently. The OCI Distribution Specification has been updated to require that a mediaType value present in a manifest or index match the Content-Type header used during the push and pull operations. Clients pulling from a registry may distrust the Content-Type header and reject an ambiguous document that contains both "manifests" and "layers" fields or "manifests" and "config" fields if they are unable to update to version 1.0.1 of the spec.
Затронутые продукты
Ссылки
- CVE-2021-41190
- SUSE Bug 1193273