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Moby (Docker Engine) CVE-2021-41089
From: "Karp, Samuel" <skarp () amazon com>
Date: Mon, 4 Oct 2021 18:57:19 +0000
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. Patches 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. Workarounds Ensure you only run trusted containers. Credits The Moby project would like to thank Lei Wang and Ruizhi Xiao for responsibly disclosing this issue in accordance with the Moby security policy. If you have any questions or comments about this advisory: Open an issue [1] Email us at security () docker com if you think you’ve found a security bug View this advisory on the web: https://github.com/moby/moby/security/advisories/GHSA-v994-f8vw-g7j4 On behalf of the Moby project, Samuel Karp [1] https://github.com/moby/moby/issues/new
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- Moby (Docker Engine) CVE-2021-41089 Karp, Samuel (Oct 04)