Detections
Analytics
Alpine: samba: security update to 4.13.8-r0
medium Tenable Self-Hosted Container Security Plugin ID 407072
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- 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.
(CVE-2021-20254)
See Also
Plugin Details
Severity: Medium
ID: 407072
Version: Revision 1.25
Type: Local
Published: 10/31/2023
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 4.3
Percentile: 53.04
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.6
Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:N
CVSS Score Source: CVE-2021-20254
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 4/29/2021
Reference Information
CVE: CVE-2021-20254
IAVA: 2021-A-0208-S