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A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libwbclient-develUpgrade samba-develUpgrade samba-vfs-iouringUpgrade libsmbclient-devel | May 4, 2022 | Mar 2, 2022 |
| Alpine Linux | — | Upgrade samba | Mar 26, 2024 | Mar 2, 2022 |
| Centos_linux | — | Upgrade samba-client-debuginfoUpgrade samba-test-libsUpgrade samba-clientUpgrade samba-common-libs-debuginfoUpgrade samba-winbind-krb5-locatorUpgrade python3-samba-debuginfoUpgrade python3-sambaUpgrade samba-testUpgrade samba-krb5-printingUpgrade samba-test-debuginfoUpgrade libwbclientUpgrade samba-winbind-krb5-locator-debuginfoUpgrade samba-krb5-printing-debuginfoUpgrade samba-winbind-clients-debuginfoUpgrade samba-common-tools-debuginfoUpgrade samba-common-toolsUpgrade samba-commonUpgrade samba-test-libs-debuginfoUpgrade libwbclient-debuginfoUpgrade ctdbUpgrade samba-common-libsUpgrade python3-samba-testUpgrade libsmbclientUpgrade ctdb-debuginfoUpgrade samba-client-libsUpgrade samba-libsUpgrade samba-debugsourceUpgrade samba-pidlUpgrade samba-libs-debuginfoUpgrade samba-debuginfoUpgrade samba-vfs-iouring-debuginfoUpgrade samba-winbindUpgrade samba-winbind-clientsUpgrade samba-vfs-iouringUpgrade sambaUpgrade samba-client-libs-debuginfoUpgrade libsmbclient-debuginfoUpgrade samba-winbind-modulesUpgrade samba-winbind-debuginfoUpgrade samba-winbind-modules-debuginfo | Dec 14, 2021 | Dec 13, 2021 |
| Debian | — | Upgrade samba | Nov 4, 2022 | Mar 2, 2022 |
| Freebsd | — | Upgrade samba415Upgrade samba413Upgrade samba414 | Nov 4, 2022 | Nov 10, 2021 |
| Gentoo Linux | — | Upgrade net-fs/samba. | Sep 18, 2023 | Mar 2, 2022 |
| Oracle Solaris | — | Upgrade library/samba/libsmbclient to version 4.13.8-11.4.42.0.1.113.0 on Solaris 11.4Upgrade service/network/samba to version 4.13.14-11.4.42.0.1.113.0 on Solaris 11.4 | Feb 17, 2022 | Feb 17, 2022 |
| Oracle_linux | — | Upgrade ctdbUpgrade samba-pidlUpgrade samba-client-libsUpgrade samba-test-libsUpgrade samba-testUpgrade python3-sambaUpgrade samba-krb5-printingUpgrade samba-vfs-iouringUpgrade libwbclientUpgrade samba-libsUpgrade samba-winbindUpgrade samba-clientUpgrade samba-common-libsUpgrade samba-winbind-modulesUpgrade libwbclient-develUpgrade samba-commonUpgrade samba-common-toolsUpgrade samba-winbind-clientsUpgrade samba-winbind-krb5-locatorUpgrade libsmbclient-develUpgrade samba-winexeUpgrade samba-develUpgrade python3-samba-testUpgrade sambaUpgrade libsmbclient | Dec 14, 2021 | Nov 9, 2021 |
| Redhat_linux | — | Upgrade samba-winexe-debuginfoUpgrade samba-libsUpgrade samba-common-libs-debuginfoUpgrade samba-libs-debuginfoUpgrade samba-pidlUpgrade samba-debuginfoUpgrade samba-client-libsUpgrade samba-test-debuginfoUpgrade libwbclientUpgrade libsmbclient-debuginfoUpgrade ctdb-debuginfoUpgrade samba-krb5-printing-debuginfoUpgrade samba-vfs-iouringUpgrade ctdbUpgrade samba-testUpgrade samba-krb5-printingUpgrade ctdb-tests-debuginfoUpgrade samba-winbind-clients-debuginfoUpgrade libwbclient-debuginfoUpgrade python3-sambaUpgrade samba-common-tools-debuginfoUpgrade ctdb-testsUpgrade samba-debugsourceUpgrade samba-winbind-clientsUpgrade samba-client-libs-debuginfoUpgrade samba-common-libsUpgrade samba-develUpgrade samba-winbind-modulesUpgrade samba-vfs-iouring-debuginfoUpgrade samba-winbind-krb5-locator-debuginfoUpgrade libwbclient-develUpgrade libsmbclientUpgrade samba-winbind-modules-debuginfoUpgrade samba-winbind-debuginfoUpgrade samba-clientUpgrade samba-winbind-krb5-locatorUpgrade samba-commonUpgrade libsmbclient-develUpgrade python3-samba-testUpgrade samba-test-libsUpgrade python3-samba-debuginfoUpgrade samba-vfs-glusterfs-debuginfoUpgrade samba-winbindUpgrade samba-test-libs-debuginfoUpgrade sambaUpgrade samba-common-toolsUpgrade samba-winexeUpgrade samba-client-debuginfo | Dec 14, 2021 | Dec 13, 2021 |
| Rocky_linux | — | Upgrade libsmbclient-debuginfoUpgrade samba-test-debuginfoUpgrade samba-client-libs-debuginfoUpgrade libsmbclientUpgrade samba-winbind-clients-debuginfoUpgrade samba-debuginfoUpgrade sambaUpgrade samba-common-toolsUpgrade samba-krb5-printingUpgrade python3-samba-testUpgrade samba-vfs-iouringUpgrade samba-vfs-iouring-debuginfoUpgrade ctdbUpgrade libwbclientUpgrade samba-winexeUpgrade libsmbclient-develUpgrade ctdb-debuginfoUpgrade samba-develUpgrade samba-winbindUpgrade samba-winbind-modulesUpgrade samba-winbind-debuginfoUpgrade samba-libsUpgrade libwbclient-develUpgrade samba-common-libsUpgrade samba-client-debuginfoUpgrade python3-sambaUpgrade samba-winbind-modules-debuginfoUpgrade samba-winbind-clientsUpgrade samba-krb5-printing-debuginfoUpgrade samba-libs-debuginfoUpgrade samba-winbind-krb5-locatorUpgrade samba-test-libs-debuginfoUpgrade samba-winbind-krb5-locator-debuginfoUpgrade samba-testUpgrade samba-debugsourceUpgrade samba-clientUpgrade python3-samba-debuginfoUpgrade libwbclient-debuginfoUpgrade samba-common-libs-debuginfoUpgrade samba-client-libsUpgrade samba-common-tools-debuginfoUpgrade samba-test-libsUpgrade samba-winexe-debuginfo | Mar 12, 2024 | Mar 2, 2022 |
| Samba | — | Upgrade to Samba 4.13.14 or later.Upgrade to Samba 4.15.2 or later.Upgrade to Samba 4.14.10 or later. | Mar 10, 2022 | Mar 2, 2022 |
| Suse | — | Upgrade libldb2Upgrade libsamba-policy-develUpgrade samba-libs-python3Upgrade sambaUpgrade samba-winbind-64bitUpgrade libsamba-util0-32bitUpgrade libdcerpc-samr0-32bitUpgrade samba-winbindUpgrade ldb-toolsUpgrade samba-libs-python3-64bitUpgrade libndr-standard0-32bitUpgrade samba-winbind-32bitUpgrade libsamba-policy0-python3-32bitUpgrade libndr-krb5pac0-32bitUpgrade libdcerpc-samr-develUpgrade libndr-standard-develUpgrade libnetapi0-64bitUpgrade libsmbldap2-32bitUpgrade libtevent-util-develUpgrade samba-ad-dc-32bitUpgrade libtevent-util0Upgrade samba-dsdb-modulesUpgrade samba-develUpgrade libsamba-credentials0Upgrade libnetapi0-32bitUpgrade samba-clientUpgrade libndr-nbt0Upgrade libdcerpc-develUpgrade libsmbclient0-32bitUpgrade libsamba-util-develUpgrade libwbclient0Upgrade samba-libs-32bitUpgrade libdcerpc0-32bitUpgrade samba-client-libs-32bitUpgrade libsamba-credentials-develUpgrade libsamdb-develUpgrade libsmbclient-develUpgrade libsamba-passdb-develUpgrade libdcerpc0-64bitUpgrade libsamba-policy-python3-develUpgrade libwbclient0-64bitUpgrade libndr-krb5pac0-64bitUpgrade samba-client-libsUpgrade libdcerpc-binding0-64bitUpgrade libnetapi0Upgrade samba-docUpgrade samba-libsUpgrade ctdb-testsUpgrade libtevent-util0-64bitUpgrade samba-testUpgrade libsamba-hostconfig0Upgrade samba-client-32bitUpgrade libndr-nbt-develUpgrade libsamba-policy0-python3-64bitUpgrade libsamba-policy0-python3Upgrade libsamba-credentials0-32bitUpgrade libnetapi-devel-32bitUpgrade samba-libs-64bitUpgrade libndr0Upgrade libsmbconf-develUpgrade libndr-develUpgrade samba-cephUpgrade libsmbclient0Upgrade libndr0-32bitUpgrade libsamba-hostconfig-develUpgrade python3-ldbUpgrade libsamba-hostconfig0-64bitUpgrade libndr-krb5pac0Upgrade ctdb-pcp-pmdaUpgrade libnetapi-develUpgrade libwbclient0-32bitUpgrade libdcerpc-binding0Upgrade samba-winbind-libs-32bitUpgrade samba-ad-dc-libsUpgrade samba-client-64bitUpgrade libsamba-passdb0Upgrade libsamdb0Upgrade samba-ad-dcUpgrade libsamba-credentials0-64bitUpgrade libsmbconf0Upgrade libsmbconf0-32bitUpgrade libdcerpc-samr0-64bitUpgrade libldb2-32bitUpgrade libdcerpc-binding0-32bitUpgrade libsamdb0-64bitUpgrade libsamba-util0-64bitUpgrade libdcerpc-samr0Upgrade libsmbconf0-64bitUpgrade libsamba-util0Upgrade libwbclient-develUpgrade libsamba-errors0-32bitUpgrade libsamba-errors0Upgrade libndr1Upgrade libsamba-passdb0-32bitUpgrade libsmbclient0-64bitUpgrade samba-ad-dc-64bitUpgrade libsamba-hostconfig0-32bitUpgrade samba-ldb-ldapUpgrade samba-libs-python3-32bitUpgrade libndr-nbt0-64bitUpgrade libtevent-util0-32bitUpgrade libsamba-errors0-64bitUpgrade libndr-standard0Upgrade libnetapi-devel-64bitUpgrade libndr-krb5pac-develUpgrade libsmbldap2Upgrade libndr1-32bitUpgrade samba-winbind-libsUpgrade libndr-nbt0-32bitUpgrade python3-ldb-32bitUpgrade libsamba-errors-develUpgrade samba-python3Upgrade libsamba-passdb0-64bitUpgrade libsmbldap2-64bitUpgrade ctdbUpgrade python3-ldb-develUpgrade libsmbldap-develUpgrade libndr1-64bitUpgrade libdcerpc0Upgrade libsamdb0-32bitUpgrade libldb-develUpgrade libndr-standard0-64bitUpgrade samba-core-develUpgrade samba-gpupdate | Nov 11, 2021 | Nov 10, 2021 |
| Ubuntu | — | Upgrade samba | Nov 12, 2021 | Nov 10, 2021 |
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