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[slackware-security]  samba (SSA:2022-351-01)

New samba packages are available for Slackware 15.0 and -current to
fix security issues.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/samba-4.15.13-i586-1_slack15.0.txz:  Upgraded.
  This update fixes security issues:
  This is the Samba CVE for the Windows Kerberos RC4-HMAC Elevation of
  Privilege Vulnerability disclosed by Microsoft on Nov 8 2022.
  A Samba Active Directory DC will issue weak rc4-hmac session keys for
  use between modern clients and servers despite all modern Kerberos
  implementations supporting the aes256-cts-hmac-sha1-96 cipher.
  On Samba Active Directory DCs and members
  'kerberos encryption types = legacy'
  would force rc4-hmac as a client even if the server supports
  aes128-cts-hmac-sha1-96 and/or aes256-cts-hmac-sha1-96.
  This is the Samba CVE for the Windows Kerberos Elevation of Privilege
  Vulnerability disclosed by Microsoft on Nov 8 2022.
  A service account with the special constrained delegation permission
  could forge a more powerful ticket than the one it was presented with.
  The "RC4" protection of the NetLogon Secure channel uses the same
  algorithms as rc4-hmac cryptography in Kerberos, and so must also be
  assumed to be weak.
  Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability
  was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed
  that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue
  rc4-hmac encrypted tickets despite the target server supporting better
  encryption (eg aes256-cts-hmac-sha1-96).
  Note that there are several important behavior changes included in this
  release, which may cause compatibility problems interacting with system
  still expecting the former behavior.
  Please read the advisories of CVE-2022-37966, CVE-2022-37967 and
  CVE-2022-38023 carefully!
  For more information, see:
    https://www.samba.org/samba/security/CVE-2022-37966.html
    https://www.samba.org/samba/security/CVE-2022-37967.html
    https://www.samba.org/samba/security/CVE-2022-38023.html
    https://www.samba.org/samba/security/CVE-2022-45141.html
    https://www.cve.org/CVERecord?id=CVE-2022-37966
    https://www.cve.org/CVERecord?id=CVE-2022-37967
    https://www.cve.org/CVERecord?id=CVE-2022-38023
    https://www.cve.org/CVERecord?id=CVE-2022-45141
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/samba-4.15.13-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/samba-4.15.13-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/samba-4.17.4-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/samba-4.17.4-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
4f00b47c418d2cc088c583214fcae013  samba-4.15.13-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
17a8269e24b94c18079ab854d99c4558  samba-4.15.13-x86_64-1_slack15.0.txz

Slackware -current package:
742f1ba1ddcb483294d8c8b172aaa8b4  n/samba-4.17.4-i586-1.txz

Slackware x86_64 -current package:
dfb34c60cfe6a4dea5d3ab03ddc109f7  n/samba-4.17.4-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg samba-4.15.13-i586-1_slack15.0.txz

Then, if Samba is running restart it:

# /etc/rc.d/rc.samba restart


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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