A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade samba | Mar 26, 2024 | Dec 2, 2020 |
| Debian | — | Upgrade samba | Nov 24, 2020 | Nov 24, 2020 |
| Freebsd | — | Upgrade samba412Upgrade samba410Upgrade samba413Upgrade samba411 | Nov 1, 2020 | Oct 30, 2020 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Dec 29, 2020 | Dec 2, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade sambaUpgrade samba-commonUpgrade samba-winbindUpgrade libsmbclientUpgrade samba-winbind-modulesUpgrade samba-pythonUpgrade samba-common-toolsUpgrade samba-common-libsUpgrade samba-client-libsUpgrade libwbclientUpgrade samba-winbind-clientsUpgrade samba-libsUpgrade samba-client | Feb 22, 2021 | Dec 2, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade samba-libsUpgrade samba-commonUpgrade samba-common-toolsUpgrade samba-client-libsUpgrade samba-clientUpgrade samba-winbindUpgrade samba-winbind-clientsUpgrade libwbclientUpgrade sambaUpgrade samba-pythonUpgrade samba-common-libsUpgrade samba-winbind-modulesUpgrade libsmbclient | Jan 20, 2021 | Dec 2, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade samba-commonUpgrade sambaUpgrade samba-pythonUpgrade samba-winbindUpgrade samba-winbind-modulesUpgrade libsmbclientUpgrade libwbclientUpgrade samba-common-toolsUpgrade samba-client-libsUpgrade samba-common-libsUpgrade samba-clientUpgrade samba-libsUpgrade samba-winbind-clients | Mar 24, 2021 | Dec 2, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade libsmbclientUpgrade samba-libsUpgrade python2-sambaUpgrade samba-winbind-modulesUpgrade ctdb-testsUpgrade libwbclientUpgrade samba-clientUpgrade samba-krb5-printingUpgrade python3-sambaUpgrade samba-client-libsUpgrade samba-winbind-krb5-locatorUpgrade samba-common-toolsUpgrade python2-samba-testUpgrade samba-winbind-clientsUpgrade python3-samba-testUpgrade sambaUpgrade samba-commonUpgrade samba-testUpgrade samba-winbindUpgrade ctdbUpgrade samba-dc-libsUpgrade samba-pidlUpgrade samba-test-libsUpgrade samba-common-libs | Feb 2, 2021 | Dec 2, 2020 |
| Huawei Euleros 2_0_sp9 | — | Upgrade samba-winbind-modulesUpgrade samba-libsUpgrade libwbclientUpgrade sambaUpgrade samba-winbindUpgrade libsmbclientUpgrade samba-commonUpgrade samba-common-toolsUpgrade samba-clientUpgrade samba-winbind-clients | Jan 5, 2021 | Dec 2, 2020 |
| Samba | — | Upgrade to Samba 4.11.15 or later.Upgrade to Samba 4.13.1 or later.Upgrade to Samba 4.12.9 or later. | Dec 2, 2020 | Dec 2, 2020 |
| Suse | — | Upgrade libsmbconf0Upgrade libsamba-credentials0Upgrade libndr-krb5pac0-32bitUpgrade samba-libs-python-32bitUpgrade libndr-nbt0-32bitUpgrade libsmbldap-develUpgrade samba-cephUpgrade libsamba-policy0-32bitUpgrade samba-libs-pythonUpgrade libdcerpc-samr0Upgrade libsamba-passdb0Upgrade libsamdb-develUpgrade libsamba-passdb-develUpgrade libsamba-policy0-python3-32bitUpgrade libsmbldap0-32bitUpgrade samba-testUpgrade libndr1Upgrade samba-client-32bitUpgrade libsmbconf0-32bitUpgrade libwbclient0Upgrade libsamba-hostconfig-develUpgrade libtevent-util-develUpgrade libndr0Upgrade libsamdb0-32bitUpgrade libsamba-policy0Upgrade libsmbclient-develUpgrade libndr-standard-develUpgrade libsamba-util0-32bitUpgrade libndr-standard0-32bitUpgrade samba-libsUpgrade libsamba-policy-python-develUpgrade libsamba-policy0-python3Upgrade libdcerpc0Upgrade libdcerpc-binding0-32bitUpgrade samba-dsdb-modulesUpgrade libsamba-hostconfig0Upgrade samba-pidlUpgrade libsamba-policy-develUpgrade libnetapi-devel-32bitUpgrade libdcerpc0-32bitUpgrade libsamba-hostconfig0-32bitUpgrade libndr-develUpgrade samba-libs-python3-32bitUpgrade samba-ad-dc-32bitUpgrade libsmbclient0-32bitUpgrade libwbclient0-32bitUpgrade libsamba-util0Upgrade libndr-nbt0Upgrade ctdb-pcp-pmdaUpgrade libsmbclient0Upgrade libsmbldap2-32bitUpgrade libsmbldap2Upgrade libsamba-credentials-develUpgrade libsamba-credentials0-32bitUpgrade samba-clientUpgrade samba-libs-32bitUpgrade libsamba-errors0-32bitUpgrade samba-libs-python3Upgrade libndr-krb5pac0Upgrade libnetapi0-32bitUpgrade libdcerpc-binding0Upgrade libsamba-util-develUpgrade libdcerpc-samr-develUpgrade libsamba-errors-develUpgrade samba-python3Upgrade libsmbldap0Upgrade samba-docUpgrade libtevent-util0-32bitUpgrade samba-ad-dcUpgrade ctdbUpgrade libndr0-32bitUpgrade samba-pythonUpgrade libndr-krb5pac-develUpgrade libndr-nbt-develUpgrade libsmbconf-develUpgrade libsamba-errors0Upgrade samba-winbind-32bitUpgrade libsamdb0Upgrade libndr-standard0Upgrade libsamba-policy-python3-develUpgrade libnetapi0Upgrade libtevent-util0Upgrade libsamba-passdb0-32bitUpgrade libwbclient-develUpgrade libdcerpc-develUpgrade ctdb-testsUpgrade libdcerpc-samr0-32bitUpgrade sambaUpgrade libndr1-32bitUpgrade samba-winbindUpgrade samba-core-develUpgrade libnetapi-devel | Oct 31, 2020 | Oct 29, 2020 |
| Ubuntu | — | Upgrade samba (Ubuntu Pro)Upgrade samba | Nov 3, 2020 | Oct 29, 2020 |
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