Huawei EulerOS: CVE-2019-14870: samba security update
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_sp3-upgrade-libsmbclient
- huawei-euleros-2_0_sp3-upgrade-libwbclient
- huawei-euleros-2_0_sp3-upgrade-samba
- huawei-euleros-2_0_sp3-upgrade-samba-client
- huawei-euleros-2_0_sp3-upgrade-samba-client-libs
- huawei-euleros-2_0_sp3-upgrade-samba-common
- huawei-euleros-2_0_sp3-upgrade-samba-common-libs
- huawei-euleros-2_0_sp3-upgrade-samba-common-tools
- huawei-euleros-2_0_sp3-upgrade-samba-libs
- huawei-euleros-2_0_sp3-upgrade-samba-python
- huawei-euleros-2_0_sp3-upgrade-samba-winbind
- huawei-euleros-2_0_sp3-upgrade-samba-winbind-clients
- huawei-euleros-2_0_sp3-upgrade-samba-winbind-modules
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