A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade samba | Aug 22, 2024 | Jul 7, 2020 |
| Debian | — | Upgrade samba | Nov 24, 2020 | Jul 7, 2020 |
| Freebsd | — | Upgrade samba410Upgrade samba411Upgrade samba412 | Jul 5, 2020 | Jul 2, 2020 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Jul 28, 2020 | Jul 7, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade libsmbclientUpgrade samba-winbind-clientsUpgrade samba-common-toolsUpgrade samba-common-libsUpgrade samba-winbind-modulesUpgrade samba-clientUpgrade samba-commonUpgrade samba-client-libsUpgrade sambaUpgrade samba-winbindUpgrade samba-pythonUpgrade samba-libsUpgrade libwbclient | Nov 2, 2020 | Jul 7, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade samba-client-libsUpgrade samba-krb5-printingUpgrade samba-testUpgrade samba-common-toolsUpgrade samba-clientUpgrade samba-winbind-krb5-locatorUpgrade samba-dc-libsUpgrade libwbclientUpgrade python2-samba-testUpgrade samba-test-libsUpgrade libsmbclientUpgrade python3-samba-testUpgrade samba-winbind-modulesUpgrade python3-sambaUpgrade samba-winbindUpgrade sambaUpgrade python2-sambaUpgrade samba-common-libsUpgrade ctdbUpgrade ctdb-testsUpgrade samba-pidlUpgrade samba-winbind-clientsUpgrade samba-commonUpgrade samba-libs | Jul 31, 2020 | Jul 7, 2020 |
| Samba | — | Upgrade to Samba 4.12.4 or later.Upgrade to Samba 4.10.17 or later.Upgrade to Samba 4.11.11 or later. | Jul 7, 2020 | Jul 7, 2020 |
| Suse | — | Upgrade samba-libs-32bitUpgrade samba-clientUpgrade libsamba-credentials0Upgrade libsamba-hostconfig0Upgrade samba-dsdb-modulesUpgrade samba-libsUpgrade libndr-krb5pac0-32bitUpgrade samba-libs-python-32bitUpgrade libtdb1Upgrade libtevent0Upgrade samba-winbind-32bitUpgrade libsamba-credentials-develUpgrade samba-docUpgrade samba-ad-dc-32bitUpgrade libdcerpc-samr-develUpgrade libtalloc2-32bitUpgrade samba-winbindUpgrade ldapsmbUpgrade libsamba-policy-develUpgrade libtevent-util-develUpgrade libsamba-util-develUpgrade libdcerpc-samr0-32bitUpgrade libsmbldap0-32bitUpgrade libtevent0-32bitUpgrade libtevent-util0Upgrade libsmbclient-develUpgrade libdcerpc-develUpgrade libsamba-policy-python-develUpgrade libdcerpc0-32bitUpgrade libsamba-policy0-python3Upgrade libsamba-util0-32bitUpgrade libldb2Upgrade libnetapi0-32bitUpgrade libsamba-policy-python3-develUpgrade samba-libs-pythonUpgrade libsamba-policy0-python3-32bitUpgrade libdcerpc-binding0Upgrade libndr-nbt-develUpgrade libsmbclient0-32bitUpgrade libnetapi0Upgrade samba-libs-python3Upgrade sambaUpgrade libndr-standard0-32bitUpgrade libwbclient0Upgrade libsamba-policy0Upgrade libsmbldap2-32bitUpgrade libldb1-32bitUpgrade samba-pythonUpgrade libndr-nbt0Upgrade libdcerpc0Upgrade libsamba-credentials0-32bitUpgrade ctdb-testsUpgrade libndr1-32bitUpgrade libsamdb-develUpgrade ctdb-pcp-pmdaUpgrade libdcerpc-samr0Upgrade libndr-krb5pac-develUpgrade libndr-standard-develUpgrade libndr0Upgrade libsmbldap0Upgrade libsamdb0Upgrade libndr-nbt0-32bitUpgrade samba-ad-dcUpgrade libsmbclient0Upgrade samba-krb-printingUpgrade samba-testUpgrade samba-32bitUpgrade python-ldb-develUpgrade libsamba-errors-develUpgrade python3-ldb-32bitUpgrade libsamba-hostconfig-develUpgrade libndr-standard0Upgrade samba-client-32bitUpgrade libtalloc2Upgrade libndr-krb5pac0Upgrade libldb1Upgrade libsmbconf-develUpgrade samba-libs-python3-32bitUpgrade libwbclient0-32bitUpgrade libsamba-errors0-32bitUpgrade libsamba-hostconfig0-32bitUpgrade libdcerpc-binding0-32bitUpgrade libnetapi-develUpgrade libndr0-32bitUpgrade libnetapi-devel-32bitUpgrade libsmbconf0-32bitUpgrade libndr-develUpgrade libsamba-passdb0-32bitUpgrade libsmbldap2Upgrade libsamdb0-32bitUpgrade libndr1Upgrade ctdbUpgrade libtdb1-32bitUpgrade samba-cephUpgrade libsmbconf0Upgrade samba-python3Upgrade libsamba-util0Upgrade libsamba-errors0Upgrade libsamba-passdb0Upgrade python3-ldbUpgrade samba-pidlUpgrade python3-ldb-develUpgrade python-ldbUpgrade libtevent-util0-32bitUpgrade libsmbldap-develUpgrade samba-core-develUpgrade libldb-develUpgrade libwbclient-develUpgrade libsamba-passdb-develUpgrade libldb2-32bitUpgrade libsamba-policy0-32bitUpgrade ldb-tools | Jul 18, 2020 | Jul 2, 2020 |
| Ubuntu | — | Upgrade sambaUpgrade samba (Ubuntu Pro) | Aug 5, 2020 | Jul 2, 2020 |
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