vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-20254): Samba vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:M/Au:S/C:P/I:P/A:N) | 2021-04-29 | 2021-04-30 | 2024-11-15 |
Severity
5
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:N)
Published
2021-04-29
Added
2021-04-30
Modified
2024-11-15
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
ubuntu-pro-upgrade-samba
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