A flaw was found in samba 4.0.0 before samba 4.9.15 and samba 4.10.x before 4.10.10. An attacker can crash AD DC LDAP server via dirsync resulting in denial of service. Privilege escalation is not possible with this issue.
CVSS Details
- CVSS 3.1 Base Score: 4.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade samba | May 8, 2020 | Nov 6, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Nov 6, 2019 |
| Debian | — | Upgrade samba | May 31, 2021 | Nov 6, 2019 |
| Freebsd | — | Upgrade samba48Upgrade samba411Upgrade samba410 | Nov 1, 2019 | Oct 29, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade samba-winbind-modulesUpgrade samba-pythonUpgrade sambaUpgrade samba-clientUpgrade samba-winbindUpgrade samba-winbind-clientsUpgrade samba-common-toolsUpgrade libsmbclientUpgrade samba-common-libsUpgrade libwbclientUpgrade samba-libsUpgrade samba-commonUpgrade samba-client-libs | Feb 22, 2021 | Nov 6, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libwbclientUpgrade samba-commonUpgrade samba-libsUpgrade samba-winbind-clientsUpgrade samba-common-libsUpgrade sambaUpgrade samba-client-libsUpgrade samba-winbindUpgrade libsmbclientUpgrade samba-pythonUpgrade samba-common-toolsUpgrade samba-clientUpgrade samba-winbind-modules | Sep 28, 2020 | Nov 6, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade samba-common-libsUpgrade samba-common-toolsUpgrade samba-commonUpgrade samba-winbind-clientsUpgrade samba-clientUpgrade samba-libsUpgrade sambaUpgrade samba-winbindUpgrade samba-client-libsUpgrade samba-pythonUpgrade libsmbclientUpgrade libwbclientUpgrade samba-winbind-modules | Dec 11, 2019 | Nov 6, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade samba-testUpgrade samba-krb5-printingUpgrade ctdb-testsUpgrade libwbclientUpgrade samba-test-libsUpgrade samba-pidlUpgrade python2-samba-testUpgrade python3-sambaUpgrade ctdbUpgrade samba-client-libsUpgrade samba-winbind-modulesUpgrade sambaUpgrade samba-winbind-clientsUpgrade samba-clientUpgrade libsmbclientUpgrade samba-libsUpgrade python2-sambaUpgrade samba-common-toolsUpgrade python3-samba-testUpgrade samba-common-libsUpgrade samba-dc-libsUpgrade samba-winbind-krb5-locatorUpgrade samba-winbindUpgrade samba-common | Nov 28, 2019 | Nov 6, 2019 |
| Oracle Solaris | — | Upgrade library/samba/libsmbclient to version 4.11.6-11.4.21.0.1.69.0 on Solaris 11.4Upgrade service/network/samba to version 4.11.6-11.4.21.0.1.69.0 on Solaris 11.4 | Jan 19, 2021 | Nov 6, 2019 |
| Samba | — | Upgrade to Samba 4.9.15 or later.Upgrade to Samba 4.10.10 or later. | Nov 6, 2019 | Nov 6, 2019 |
| Suse | — | Upgrade libtevent-util-develUpgrade libndr-krb5pac0-32bitUpgrade libwbclient-develUpgrade libsamba-policy0-python3-32bitUpgrade samba-winbindUpgrade samba-winbind-32bitUpgrade libtevent-util0-32bitUpgrade libdcerpc-binding0Upgrade samba-cephUpgrade libsamba-passdb-develUpgrade libwbclient0Upgrade libsmbconf0-32bitUpgrade libndr-nbt0Upgrade libsamba-passdb0-32bitUpgrade samba-kdc-32bitUpgrade samba-libs-python3Upgrade samba-pidlUpgrade samba-libs-32bitUpgrade libsamba-util0-32bitUpgrade libldb1-32bitUpgrade libdcerpc-samr0-32bitUpgrade libsamba-hostconfig0Upgrade ctdb-testsUpgrade libsmbldap-develUpgrade libndr-standard0-32bitUpgrade libndr0Upgrade samba-testUpgrade libsamba-policy0-python3Upgrade libdcerpc-develUpgrade libsmbldap2-32bitUpgrade libsamba-credentials0Upgrade libsamdb0Upgrade libdcerpc-samr0Upgrade samba-core-develUpgrade python-ldb-develUpgrade sambaUpgrade ctdb-pcp-pmdaUpgrade ctdbUpgrade libsamba-policy0Upgrade libsamba-hostconfig0-32bitUpgrade samba-dsdb-modulesUpgrade libsamba-errors-develUpgrade libnetapi-develUpgrade libndr1-32bitUpgrade libldb1Upgrade libnetapi0Upgrade libndr1Upgrade libsmbconf-develUpgrade libndr0-32bitUpgrade libsmbconf0Upgrade samba-pythonUpgrade libsamba-hostconfig-develUpgrade samba-docUpgrade libndr-standard0Upgrade libsamba-util-develUpgrade python-ldbUpgrade samba-ad-dc-32bitUpgrade libwbclient0-32bitUpgrade libsamba-errors0-32bitUpgrade libndr-develUpgrade libsmbclient0Upgrade libsmbclient0-32bitUpgrade libsamdb-develUpgrade libndr-krb5pac0Upgrade libsamba-policy-python-develUpgrade samba-python3Upgrade libsamba-credentials0-32bitUpgrade samba-kdcUpgrade samba-clientUpgrade libdcerpc-binding0-32bitUpgrade libsamba-policy-develUpgrade libsamba-errors0Upgrade libsmbclient-develUpgrade libsamba-util0Upgrade samba-ad-dcUpgrade libndr-standard-develUpgrade libldb-develUpgrade libtevent-util0Upgrade libsamba-credentials-develUpgrade libndr-krb5pac-develUpgrade libsamba-policy0-32bitUpgrade samba-libs-pythonUpgrade libsamba-passdb0Upgrade libsamba-policy-python3-develUpgrade samba-libs-python3-32bitUpgrade libndr-nbt-develUpgrade libsmbldap2Upgrade libsamdb0-32bitUpgrade ldb-toolsUpgrade libndr-nbt0-32bitUpgrade samba-client-32bitUpgrade libnetapi0-32bitUpgrade libdcerpc-samr-develUpgrade libdcerpc0-32bitUpgrade libdcerpc0Upgrade samba-libs-python-32bitUpgrade samba-libs | Nov 6, 2019 | Oct 29, 2019 |
| Ubuntu | — | Upgrade samba (Ubuntu Pro)Upgrade libsmbclient (Ubuntu Pro)Upgrade sambaUpgrade libsmbclient | Oct 30, 2019 | Oct 29, 2019 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub