Debian Security Advisory

DSA-5071-1 samba -- security update

Date Reported:
11 Feb 2022
Affected Packages:
samba
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 1001068, Bug 1004693, Bug 1004694.
In Mitre's CVE dictionary: CVE-2021-44142, CVE-2022-0336.
More information:

Several vulnerabilities were discovered in Samba, a SMB/CIFS file, print, and login server for Unix.

  • CVE-2021-44142

    Orange Tsai reported an out-of-bounds heap write vulnerability in the VFS module vfs_fruit, which could result in remote execution of arbitrary code as root.

  • CVE-2022-0336

    Kees van Vloten reported that Samba AD users with permission to write to an account can impersonate arbitrary services.

For the oldstable distribution (buster), these problems have been fixed in version 2:4.9.5+dfsg-5+deb10u3. As per DSA 5015-1, CVE-2022-0336 has not been addressed for the oldstable distribution (buster).

For the stable distribution (bullseye), these problems have been fixed in version 2:4.13.13+dfsg-1~deb11u3. Additionally, some followup fixes for CVE-2020-25717 are included in this update (Cf. #1001068).

We recommend that you upgrade your samba packages.

For the detailed security status of samba please refer to its security tracker page at: https://security-tracker.debian.org/tracker/samba