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[Launchpad Bug Tracker <903752@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug by Bolesław Tokarski (boleslaw-tokarski):

1. Availability:
 - in universe for some time

2. Rationale:
 - https://blueprints.launchpad.net/ubuntu/+spec/servercloud-p-sssd-mir

3.  Security:
 - no current CVE
 - five CVE reports in the past:
 CVE-2011-1758 	The krb5_save_ccname_done function in providers/krb5/krb5_auth.c in System Security Services Daemon (SSSD) 1.5.x before 1.5.7, when automatic ticket renewal and offline authentication are configured, uses a pathname string as a password, which allows local users to bypass Kerberos authentication by listing the /tmp directory to obtain the pathname.
 CVE-2010-4341 	The pam_parse_in_data_v2 function in src/responder/pam/pamsrv_cmd.c in the PAM responder in SSSD 1.5.0, 1.4.x, and 1.3 allows local users to cause a denial of service (infinite loop, crash, and login prevention) via a crafted packet.
 CVE-2010-2940 	The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon (SSSD) 1.3.0, when LDAP authentication and anonymous bind are enabled, allows remote attackers to bypass the authentication requirements of pam_authenticate via an empty password.
 CVE-2010-0014 	System Security Services Daemon (SSSD) before 1.0.1, when the krb5 auth_provider is configured but the KDC is unreachable, allows physically proximate attackers to authenticate, via an arbitrary password, to the screen-locking program on a workstation that has any user's Kerberos ticket-granting ticket (TGT); and might allow remote attackers to bypass intended access restrictions via vectors involving an arbitrary password in conjunction with a valid TGT.
 CVE-2009-2410   The local_handler_callback function in server/responder/pam/pam_LOCAL_domain.c in sssd 0.4.1 does not properly handle blank-password accounts in the SSSD BE database, which allows context-dependent attackers to obtain access by sending the account's username, in conjunction with an arbitrary password, over an ssh connection.

 all got fixed by upstream in a timely manner.

 - ships a daemon that handles connections to LDAP, Kerberos servers
 - doesn't open privileged ports
 - binaries in /usr/sbin include sssd, sss_group{add,del,mod}, sss_user{add,del,mod}

4. Quality assurance:
 - current version doesn't install any working configuration, it is the plan to add support for debconf though
<check>

5. UI standards:
 - not applicable

6. Dependencies:
 - ding-libs (libcollection-dev, libini-config-dev, libdhash-dev)
 - tevent (libtevent-dev)
 - ldb (libldb-dev)
 - libsemanage (libsemanage1-dev)

7. Standards compliance:
 - shipped by debian
 - lintian clean
 - uses dh, source format 3.0 (quilt)

8. Maintenance:
 - currently maintained by a team of volunteers on Debian and Ubuntu
 - shared git repository on git.debian.org

9. Background information:
<check>

** Affects: ding-libs (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Affects: ldb (Ubuntu)
     Importance: Undecided
         Status: Confirmed

** Affects: libsemanage (Ubuntu)
     Importance: Undecided
         Status: Won't Fix

** Affects: sssd (Ubuntu)
     Importance: Undecided
         Status: Fix Committed

** Affects: tevent (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
[MIR] sssd
https://bugs.launchpad.net/bugs/903752
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