Race Condition Affecting samba package, versions *


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-UBUNTU2104-SAMBA-2337445
  • published12 Jan 2022
  • disclosed11 Jan 2022

Introduced: 11 Jan 2022

CVE-2021-43566  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:21.04 samba.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Ubuntu. See How to fix? for Ubuntu:21.04 relevant fixed versions and status.

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.

CVSS Scores

version 3.1