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.
problem types: CWE-125
affected:
{
product: samba
vendor: n/a
versions:
status: affected, version: samba 4.14.1, samba 4.13.6, samba 4.12.13
}