File _patchinfo of Package patchinfo.21699

<patchinfo incident="21699">
  <issue tracker="bnc" id="1014440">VUL-0: EMBARGOED: CVE-2016-2124: samba: don't fallback to non spnego authentication if we require kerberos</issue>
  <issue tracker="bnc" id="1192214">VUL-0: EMBARGOED: CVE-2021-23192: samba: dcerpc requests don't check all fragments against the first auth_state</issue>
  <issue tracker="bnc" id="1192215">VUL-0: EMBARGOED: CVE-2021-3738: samba: crash in dsdb stack</issue>
  <issue tracker="bnc" id="1192246">VUL-0: EMBARGOED: CVE-2020-25718: samba: An RODC can issue (forge) administrator tickets to other servers</issue>
  <issue tracker="bnc" id="1192247">VUL-0: EMBARGOED: CVE-2020-25719: samba: AD DC Username based races when no PAC is given</issue>
  <issue tracker="bnc" id="1192283">VUL-0: EMBARGOED: CVE-2020-25722: samba: AD DC UPN vs samAccountName not checked (top-level bug for AD DC validation issues)</issue>
  <issue tracker="bnc" id="1192284">VUL-0: EMBARGOED: CVE-2020-25717: samba: A user on the domain can become root on domain members</issue>
  <issue tracker="bnc" id="1192505">VUL-0: EMBARGOED: CVE-2020-25721: samba: Kerberos acceptors need easy access to stableAD identifiers (eg objectSid)</issue>
  <issue tracker="cve" id="2016-2124"/>
  <issue tracker="cve" id="2020-25717"/>
  <issue tracker="cve" id="2020-25718"/>
  <issue tracker="cve" id="2020-25719"/>
  <issue tracker="cve" id="2020-25721"/>
  <issue tracker="cve" id="2020-25722"/>
  <issue tracker="cve" id="2021-23192"/>
  <issue tracker="cve" id="2021-3738"/>
  <packager>npower</packager>
  <rating>important</rating>
  <category>security</category>
  <summary>Security update for samba and ldb</summary>
  <description>This update for samba and ldb fixes the following issues:

- CVE-2020-25718: Fixed that an RODC can issue (forge) administrator tickets to other servers (bsc#1192246).
- CVE-2021-3738: Fixed crash in dsdb stack (bsc#1192215).
- CVE-2016-2124: Fixed not to fallback to non spnego authentication if we require kerberos (bsc#1014440).
- CVE-2020-25717: Fixed privilege escalation inside an AD Domain where a user could become root on domain members (bsc#1192284).
- CVE-2020-25719: Fixed AD DC Username based races when no PAC is given (bsc#1192247).
- CVE-2020-25722: Fixed AD DC UPN vs samAccountName not checked (top-level bug for AD DC validation issues) (bsc#1192283).
- CVE-2021-23192: Fixed dcerpc requests to don't check all fragments against the first auth_state (bsc#1192214).
- CVE-2020-25721: Fixed fill in the new HAS_SAM_NAME_AND_SID values (bsc#1192505).

Samba was updated to 4.13.13

* rodc_rwdc test flaps;(bso#14868).
* Backport bronze bit fixes, tests, and selftest improvements;
  (bso#14881).
* Provide a fix for MS CVE-2020-17049 in Samba [SECURITY]
  'Bronze bit' S4U2Proxy Constrained Delegation bypass in Samba
  with embedded Heimdal;(bso#14642).
* Python ldb.msg_diff() memory handling failure;(bso#14836).
* "in" operator on ldb.Message is case sensitive;(bso#14845).
* Fix Samba support for UF_NO_AUTH_DATA_REQUIRED;(bso#14871).
* Allow special chars like "@" in samAccountName when generating
  the salt;(bso#14874).
* Fix transit path validation;(bso#12998).
* Prepare to operate with MIT krb5 >= 1.20;(bso#14870).
* rpcclient NetFileEnum and net rpc file both cause lock order
  violation: brlock.tdb, share_entries.tdb;(bso#14645).
* Python ldb.msg_diff() memory handling failure;(bso#14836).
* Release LDB 2.3.1 for Samba 4.14.9;(bso#14848).

Samba was updated to 4.13.12:

* Address a signifcant performance regression in database access
  in the AD DC since Samba 4.12;(bso#14806).
* Fix performance regression in lsa_LookupSids3/LookupNames4
  since Samba 4.9 by using an explicit database handle cache;
  (bso#14807).
* An unuthenticated user can crash the AD DC KDC by omitting the
  server name in a TGS-REQ;(bso#14817).
* Address flapping samba_tool_drs_showrepl test;(bso#14818).
* Address flapping dsdb_schema_attributes test;(bso#14819).
* An unuthenticated user can crash the AD DC KDC by omitting the
  server name in a TGS-REQ;(bso#14817).
* Fix CTDB flag/status update race conditions(bso#14784).

Samba was updated to 4.13.11:

* smbd: panic on force-close share during offload write; (bso#14769).
* Fix returned attributes on fake quota file handle and avoid
  hitting the VFS;(bso#14731).
* smbd: "deadtime" parameter doesn't work anymore;(bso#14783).
* net conf list crashes when run as normal user;(bso#14787).
* Work around special SMB2 READ response behavior of NetApp Ontap
  7.3.7;(bso#14607).
* Start the SMB encryption as soon as possible;(bso#14793).
* Winbind should not start if the socket path for the privileged
  pipe is too long;(bso#14792).

ldb was updated to 2.2.2:

+ CVE-2020-25718: samba: An RODC can issue (forge) administrator tickets to other servers; (bsc#1192246); (bso#14558)
+ CVE-2021-3738: samba: crash in dsdb stack; (bsc#1192215);(bso#14848)

Release ldb 2.2.2

+ Corrected python behaviour for 'in' for LDAP attributes contained as part of ldb.Message;(bso#14845).
+ Fix memory handling in ldb.msg_diff Corrected python docstrings;(bso#14836)
+ Backport bronze bit fixes, tests, and selftest improvements; (bso#14881).
</description>
</patchinfo>
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