SAMBA+ 4.17.2, 4.16.6 and 4.15.11 Security Releases

SAMBA+ 4.17.2, 4.16.6 and 4.15.11 have just been released. These are important security releases, please update affected systems as soon as possible. The packages are available for various SUSE and Red Hat platforms as well as for Debian GNU/Linux, Ubuntu and AIX.

The 4.17.2 packages address the following issues:

  • CVE-2022-3437: Buffer overflow in Heimdal unwrap_des3():
    There is a limited write heap buffer overflow in the GSSAPI unwrap_des() and unwrap_des3() routines of Heimdal (included in Samba).
  • CVE-2022-3592: Wide links protection broken:
    A malicious client can use a symlink to escape the exported directory.

Samba 4.16 and 4.15 are not affected by CVE-2022-3592, the packages address CVE-2022-3437.

The 4.15.11 packages additionally address the following issues:

  • Bug 15197: Windows 11 22H2 and Samba-AD 4.15 Kerberos login issue
  • Bug 15202: writev epoll_wait cpu-spinning in the LDAP server


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