What is RHSA-2022:0074?

RHSA-2022:0074 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: samba security update

Which CVE IDs does RHSA-2022:0074 cover?

RHSA-2022:0074 covers the following CVE IDs: CVE-2016-2124, CVE-2020-25717. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2022:0074?

RHSA-2022:0074 has a CVSS v3 base score of 8.1, published by Red Hat Product Security.

Which products are affected by RHSA-2022:0074?

RHSA-2022:0074 affects 200 products, including: Red Hat CodeReady Linux Builder EUS (v. 8.2); Red Hat Enterprise Linux BaseOS EUS (v. 8.2); ctdb-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2); ctdb-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2); ctdb-0:4.11.2-18.el8_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2); and others — see the full list on the advisory page.

RHSA-2022:0074HighCVSS 8.1

Red Hat Security Advisory: samba security update

Vendor

Red Hat Product Security

Published

January 11, 2022

Last Modified

November 5, 2026

🔗 CVE IDs covered (2)

CVE-2016-2124 →CVE-2020-25717 →

📋 Description

CVE-2016-2124 — samba: SMB1 client connections can be downgraded to plaintext authentication CVE-2020-25717 — samba: Active Directory (AD) domain user could become root on domain members

🎯 Affected products200

Red Hat CodeReady Linux Builder EUS (v. 8.2)
Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-0:4.11.2-18.el8_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.i686 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.i686 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.s390x as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-debuginfo-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-0:4.11.2-18.el8_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.i686 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.i686 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.s390x as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v. 8.2)
ctdb-tests-debuginfo-0:4.11.2-18.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v. 8.2)
+170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, the smb service will be restarted automatically. Workaround: Ensure the following [global] smb.conf parameters are set to their default values as shown below: ~~~ client lanman auth = no client NTLMv2 auth = yes client plaintext auth = no client min protocol = SMB2_02 ~~~ Or use the '-k' command line option only without the -U option, which will make use of an existing krb5 ccache. Workaround: Setting "gensec:require_pac=true" in the smb.conf makes, due to a cache prime in winbind, the DOMAIN\user lookup succeed, provided nss_winbind is in use, 'winbind use default domain = no' (the default) and no error paths are hit. It would be prudent to pre-create disabled users in Active Directory matching on all privileged names not held in Active Directory, eg ~~~ samba-tool user add root -H ldap://$SERVER -U$USERNAME%$PASSWORD --random-password samba-tool user add ubuntu -H ldap://$SERVER -U$USERNAME%$PASSWORD --random-password ~~~ (repeat for eg all system users under 1000 in /etc/passwd or special to any other AD-connected services, eg perhaps "admin" for a web-app)

🔗 CVE IDs covered (2)

📋 Description

🎯 Affected products200

✅ Remediation

🔗 References (5)