Security update for samba SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:1442-1 Final 1 1 2021-04-29T11:02:59Z current 2021-04-29T11:02:59Z 2021-04-29T11:02:59Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for samba This update for samba fixes the following issues: - CVE-2021-20254: Fixed a buffer overrun in sids_to_unixids() (bsc#1184677). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2021-1442,SUSE-SLE-SERVER-12-SP2-BCL-2021-1442,SUSE-SLE-SERVER-12-SP2-LTSS-ERICSSON-2021-1442,SUSE-SLE-SERVER-12-SP2-LTSS-SAP-2021-1442 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-20211442-1/ Link for SUSE-SU-2021:1442-1 https://lists.suse.com/pipermail/sle-security-updates/2021-April/008708.html E-Mail link for SUSE-SU-2021:1442-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1184677 SUSE Bug 1184677 https://www.suse.com/security/cve/CVE-2021-20254/ SUSE CVE CVE-2021-20254 page SUSE Linux Enterprise Server 12 SP2-BCL ctdb-4.2.4-28.39.1 ctdb-devel-4.2.4-28.39.1 ctdb-tests-4.2.4-28.39.1 libdcerpc-atsvc-devel-4.2.4-28.39.1 libdcerpc-atsvc0-4.2.4-28.39.1 libdcerpc-atsvc0-32bit-4.2.4-28.39.1 libdcerpc-atsvc0-64bit-4.2.4-28.39.1 libdcerpc-binding0-4.2.4-28.39.1 libdcerpc-binding0-32bit-4.2.4-28.39.1 libdcerpc-binding0-64bit-4.2.4-28.39.1 libdcerpc-devel-4.2.4-28.39.1 libdcerpc-samr-devel-4.2.4-28.39.1 libdcerpc-samr0-4.2.4-28.39.1 libdcerpc-samr0-32bit-4.2.4-28.39.1 libdcerpc-samr0-64bit-4.2.4-28.39.1 libdcerpc0-4.2.4-28.39.1 libdcerpc0-32bit-4.2.4-28.39.1 libdcerpc0-64bit-4.2.4-28.39.1 libgensec-devel-4.2.4-28.39.1 libgensec0-4.2.4-28.39.1 libgensec0-32bit-4.2.4-28.39.1 libgensec0-64bit-4.2.4-28.39.1 libndr-devel-4.2.4-28.39.1 libndr-krb5pac-devel-4.2.4-28.39.1 libndr-krb5pac0-4.2.4-28.39.1 libndr-krb5pac0-32bit-4.2.4-28.39.1 libndr-krb5pac0-64bit-4.2.4-28.39.1 libndr-nbt-devel-4.2.4-28.39.1 libndr-nbt0-4.2.4-28.39.1 libndr-nbt0-32bit-4.2.4-28.39.1 libndr-nbt0-64bit-4.2.4-28.39.1 libndr-standard-devel-4.2.4-28.39.1 libndr-standard0-4.2.4-28.39.1 libndr-standard0-32bit-4.2.4-28.39.1 libndr-standard0-64bit-4.2.4-28.39.1 libndr0-4.2.4-28.39.1 libndr0-32bit-4.2.4-28.39.1 libndr0-64bit-4.2.4-28.39.1 libnetapi-devel-4.2.4-28.39.1 libnetapi0-4.2.4-28.39.1 libnetapi0-32bit-4.2.4-28.39.1 libnetapi0-64bit-4.2.4-28.39.1 libregistry-devel-4.2.4-28.39.1 libregistry0-4.2.4-28.39.1 libregistry0-32bit-4.2.4-28.39.1 libregistry0-64bit-4.2.4-28.39.1 libsamba-credentials-devel-4.2.4-28.39.1 libsamba-credentials0-4.2.4-28.39.1 libsamba-credentials0-32bit-4.2.4-28.39.1 libsamba-credentials0-64bit-4.2.4-28.39.1 libsamba-hostconfig-devel-4.2.4-28.39.1 libsamba-hostconfig0-4.2.4-28.39.1 libsamba-hostconfig0-32bit-4.2.4-28.39.1 libsamba-hostconfig0-64bit-4.2.4-28.39.1 libsamba-passdb-devel-4.2.4-28.39.1 libsamba-passdb0-4.2.4-28.39.1 libsamba-passdb0-32bit-4.2.4-28.39.1 libsamba-passdb0-64bit-4.2.4-28.39.1 libsamba-policy-devel-4.2.4-28.39.1 libsamba-policy0-4.2.4-28.39.1 libsamba-policy0-32bit-4.2.4-28.39.1 libsamba-policy0-64bit-4.2.4-28.39.1 libsamba-util-devel-4.2.4-28.39.1 libsamba-util0-4.2.4-28.39.1 libsamba-util0-32bit-4.2.4-28.39.1 libsamba-util0-64bit-4.2.4-28.39.1 libsamdb-devel-4.2.4-28.39.1 libsamdb0-4.2.4-28.39.1 libsamdb0-32bit-4.2.4-28.39.1 libsamdb0-64bit-4.2.4-28.39.1 libsmbclient-devel-4.2.4-28.39.1 libsmbclient-raw-devel-4.2.4-28.39.1 libsmbclient-raw0-4.2.4-28.39.1 libsmbclient-raw0-32bit-4.2.4-28.39.1 libsmbclient-raw0-64bit-4.2.4-28.39.1 libsmbclient0-4.2.4-28.39.1 libsmbclient0-32bit-4.2.4-28.39.1 libsmbclient0-64bit-4.2.4-28.39.1 libsmbconf-devel-4.2.4-28.39.1 libsmbconf0-4.2.4-28.39.1 libsmbconf0-32bit-4.2.4-28.39.1 libsmbconf0-64bit-4.2.4-28.39.1 libsmbldap-devel-4.2.4-28.39.1 libsmbldap0-4.2.4-28.39.1 libsmbldap0-32bit-4.2.4-28.39.1 libsmbldap0-64bit-4.2.4-28.39.1 libtevent-util-devel-4.2.4-28.39.1 libtevent-util0-4.2.4-28.39.1 libtevent-util0-32bit-4.2.4-28.39.1 libtevent-util0-64bit-4.2.4-28.39.1 libwbclient-devel-4.2.4-28.39.1 libwbclient0-4.2.4-28.39.1 libwbclient0-32bit-4.2.4-28.39.1 libwbclient0-64bit-4.2.4-28.39.1 samba-4.2.4-28.39.1 samba-32bit-4.2.4-28.39.1 samba-64bit-4.2.4-28.39.1 samba-client-4.2.4-28.39.1 samba-client-32bit-4.2.4-28.39.1 samba-client-64bit-4.2.4-28.39.1 samba-core-devel-4.2.4-28.39.1 samba-doc-4.2.4-28.39.1 samba-libs-4.2.4-28.39.1 samba-libs-32bit-4.2.4-28.39.1 samba-libs-64bit-4.2.4-28.39.1 samba-pidl-4.2.4-28.39.1 samba-python-4.2.4-28.39.1 samba-test-4.2.4-28.39.1 samba-test-devel-4.2.4-28.39.1 samba-winbind-4.2.4-28.39.1 samba-winbind-32bit-4.2.4-28.39.1 samba-winbind-64bit-4.2.4-28.39.1 libdcerpc-atsvc0-4.2.4-28.39.1 as a component of SUSE Linux Enterprise Server 12 SP2-BCL A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity. CVE-2021-20254 SUSE Linux Enterprise Server 12 SP2-BCL:libdcerpc-atsvc0-4.2.4-28.39.1 important 5.5 AV:N/AC:L/Au:S/C:P/I:P/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20211442-1/ https://www.suse.com/security/cve/CVE-2021-20254.html CVE-2021-20254 https://bugzilla.suse.com/1184677 SUSE Bug 1184677 https://bugzilla.suse.com/1185886 SUSE Bug 1185886 https://bugzilla.suse.com/1189860 SUSE Bug 1189860