CVE-2021-41089GO-2024-2913GHSA-V994-F8VW-G7J4
`docker cp` allows unexpected chmod of host files
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 20.10.9, 20.10.9+incompatible
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- moby moby
fixed in 20.10.9
- github.com/docker/dockerGo
fixed in 20.10.9+incompatible
- github.com/moby/mobyGo
fixed in 20.10.9+incompatible
- github.com/docker/dockerGo
fixed in 20.10.9