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CVE-2021-20254

Published: 2021-05-05T14:15Z
Last Modified: 2024-11-21T05:46Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt