Summary
Peter Eriksson discovered that Samba incorrectly handled certain negative
idmap cache entries. This issue could result in certain users gaining
unauthorized access to files, contrary to expected behaviour.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 16.04 LTS 16.04:LTS | samba | 2:4.3.11+dfsg-0ubuntu0.16.04.34 |
| Ubuntu · 18.04 LTS 18.04:LTS | samba | 2:4.7.6+dfsg~ubuntu-0ubuntu2.23 |
| Ubuntu · 20.04 LTS 20.04:LTS | samba | 2:4.11.6+dfsg-0ubuntu1.8 |
Vulnerabilities 1
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Unscored —
A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gid…
References
-
report
https://ubuntu.com/security/CVE-2021-20254