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A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade samba | Aug 22, 2024 | May 6, 2020 |
| Debian | — | Upgrade samba | Nov 24, 2020 | May 6, 2020 |
| Freebsd | — | Upgrade samba410Upgrade samba411Upgrade samba412 | Apr 30, 2020 | Apr 29, 2020 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Jul 28, 2020 | May 6, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libwbclientUpgrade python2-samba-testUpgrade python2-sambaUpgrade sambaUpgrade samba-pidlUpgrade samba-winbind-modulesUpgrade ctdb-testsUpgrade samba-client-libsUpgrade samba-winbindUpgrade ctdbUpgrade python3-samba-testUpgrade python3-sambaUpgrade libsmbclientUpgrade samba-libsUpgrade samba-dc-libsUpgrade samba-common-toolsUpgrade samba-clientUpgrade samba-test-libsUpgrade samba-krb5-printingUpgrade samba-winbind-clientsUpgrade samba-testUpgrade samba-winbind-krb5-locatorUpgrade samba-common-libsUpgrade samba-common | Aug 31, 2020 | May 6, 2020 |
| Oracle Solaris | — | Upgrade service/network/ldap/openldap to version 2.4.50.0.0-11.4.22.0.1.69.4 on Solaris 11.4Upgrade system/network/ldap/openldap to version 2.4.50.0.0-11.4.22.0.1.69.4 on Solaris 11.4 | Jan 19, 2021 | May 6, 2020 |
| Samba | — | Upgrade to Samba 4.10.15 or later.Upgrade to Samba 4.12.2 or later.Upgrade to Samba 4.11.8 or later. | Jun 3, 2020 | May 6, 2020 |
| Suse | — | Upgrade libsamba-credentials0-32bitUpgrade libsamba-errors-develUpgrade python-ldbUpgrade libldb2Upgrade libsamba-util-develUpgrade libndr-krb5pac0-32bitUpgrade libsmbconf0Upgrade libsmbldap2-32bitUpgrade samba-client-32bitUpgrade libndr1Upgrade samba-cephUpgrade libsmbldap-develUpgrade libdcerpc-develUpgrade ctdbUpgrade libsamba-credentials0Upgrade sambaUpgrade samba-libsUpgrade libsmbconf0-32bitUpgrade libldb2-32bitUpgrade libsamba-passdb-develUpgrade python3-ldb-32bitUpgrade libdcerpc-binding0Upgrade libndr-nbt0Upgrade libsmbclient0Upgrade ldb-toolsUpgrade samba-winbindUpgrade libtevent-util0Upgrade libnetapi0Upgrade libsamba-util0-32bitUpgrade samba-libs-pythonUpgrade samba-pythonUpgrade libsamba-util0Upgrade samba-winbind-32bitUpgrade libsmbconf-develUpgrade samba-libs-python-32bitUpgrade samba-libs-32bitUpgrade samba-libs-python3Upgrade libsamba-credentials-develUpgrade libnetapi-develUpgrade python-ldb-develUpgrade libsmbclient-develUpgrade libdcerpc-samr0-32bitUpgrade libndr-standard0Upgrade libsamba-policy0-python3-32bitUpgrade libndr0Upgrade libldb1-32bitUpgrade libndr-standard-develUpgrade libndr0-32bitUpgrade libsamba-hostconfig0Upgrade libsamba-policy0-python3Upgrade libtevent-util-develUpgrade libsmbldap2Upgrade samba-docUpgrade libsamba-errors0-32bitUpgrade samba-pidlUpgrade libwbclient0Upgrade libsamba-policy-python-develUpgrade libsmbclient0-32bitUpgrade libwbclient0-32bitUpgrade ctdb-pcp-pmdaUpgrade libsamba-hostconfig-develUpgrade libsamdb-develUpgrade libldb1Upgrade samba-python3Upgrade samba-ad-dcUpgrade libdcerpc-binding0-32bitUpgrade samba-clientUpgrade python3-ldbUpgrade libnetapi-devel-32bitUpgrade libdcerpc-samr-develUpgrade python3-ldb-develUpgrade libsamdb0-32bitUpgrade libndr-nbt-develUpgrade ctdb-testsUpgrade libsamba-policy-develUpgrade samba-testUpgrade libsamba-hostconfig0-32bitUpgrade libndr1-32bitUpgrade samba-core-develUpgrade libsamba-policy0-32bitUpgrade libldb-develUpgrade libsamba-policy-python3-develUpgrade libsamba-passdb0Upgrade libndr-develUpgrade libtevent-util0-32bitUpgrade libsamba-passdb0-32bitUpgrade samba-dsdb-modulesUpgrade samba-libs-python3-32bitUpgrade libndr-krb5pac0Upgrade libndr-krb5pac-develUpgrade libdcerpc0Upgrade libndr-standard0-32bitUpgrade libsamba-errors0Upgrade libdcerpc0-32bitUpgrade libdcerpc-samr0Upgrade libsamba-policy0Upgrade libwbclient-develUpgrade libnetapi0-32bitUpgrade samba-ad-dc-32bitUpgrade libndr-nbt0-32bitUpgrade libsamdb0 | Apr 29, 2020 | Apr 28, 2020 |
| Ubuntu | — | Upgrade samba (Ubuntu Pro)Upgrade samba | Apr 29, 2020 | Apr 28, 2020 |
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