Oracle Solaris 11: CVE-2021-20254 (11.4 SRU 39.107.1)
Description
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.
Solution(s)
- oracle-solaris-11-4-upgrade-library-samba-libsmbclient-4-13-8-11-4-39-0-1-107-0
- oracle-solaris-11-4-upgrade-service-network-samba-4-13-8-11-4-39-0-1-107-0
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