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Huawei EulerOS: CVE-2019-14870: samba security update

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Huawei EulerOS: CVE-2019-14870: samba security update

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
12/10/2019
Created
01/03/2020
Added
01/03/2020
Modified
01/03/2020

Description

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.

Solution(s)

  • huawei-euleros-2_0_sp8-upgrade-ctdb
  • huawei-euleros-2_0_sp8-upgrade-ctdb-tests
  • huawei-euleros-2_0_sp8-upgrade-libsmbclient
  • huawei-euleros-2_0_sp8-upgrade-libwbclient
  • huawei-euleros-2_0_sp8-upgrade-python2-samba
  • huawei-euleros-2_0_sp8-upgrade-python2-samba-test
  • huawei-euleros-2_0_sp8-upgrade-python3-samba
  • huawei-euleros-2_0_sp8-upgrade-python3-samba-test
  • huawei-euleros-2_0_sp8-upgrade-samba
  • huawei-euleros-2_0_sp8-upgrade-samba-client
  • huawei-euleros-2_0_sp8-upgrade-samba-client-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-common
  • huawei-euleros-2_0_sp8-upgrade-samba-common-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-common-tools
  • huawei-euleros-2_0_sp8-upgrade-samba-dc-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-krb5-printing
  • huawei-euleros-2_0_sp8-upgrade-samba-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-pidl
  • huawei-euleros-2_0_sp8-upgrade-samba-test
  • huawei-euleros-2_0_sp8-upgrade-samba-test-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-clients
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-krb5-locator
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-modules

References

  • huawei-euleros-2_0_sp8-upgrade-ctdb
  • huawei-euleros-2_0_sp8-upgrade-ctdb-tests
  • huawei-euleros-2_0_sp8-upgrade-libsmbclient
  • huawei-euleros-2_0_sp8-upgrade-libwbclient
  • huawei-euleros-2_0_sp8-upgrade-python2-samba
  • huawei-euleros-2_0_sp8-upgrade-python2-samba-test
  • huawei-euleros-2_0_sp8-upgrade-python3-samba
  • huawei-euleros-2_0_sp8-upgrade-python3-samba-test
  • huawei-euleros-2_0_sp8-upgrade-samba
  • huawei-euleros-2_0_sp8-upgrade-samba-client
  • huawei-euleros-2_0_sp8-upgrade-samba-client-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-common
  • huawei-euleros-2_0_sp8-upgrade-samba-common-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-common-tools
  • huawei-euleros-2_0_sp8-upgrade-samba-dc-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-krb5-printing
  • huawei-euleros-2_0_sp8-upgrade-samba-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-pidl
  • huawei-euleros-2_0_sp8-upgrade-samba-test
  • huawei-euleros-2_0_sp8-upgrade-samba-test-libs
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-clients
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-krb5-locator
  • huawei-euleros-2_0_sp8-upgrade-samba-winbind-modules

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