CVE ID:	CVE-2021-20254
Description:	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.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2022.1094   1.3.6.1.4.1.25623.1.1.4.2021.1492.1   1.3.6.1.4.1.25623.1.1.2.2021.2315   1.3.6.1.4.1.25623.1.1.4.2021.1442.1   1.3.6.1.4.1.25623.1.0.879549   1.3.6.1.4.1.25623.1.1.2.2021.2282   1.3.6.1.4.1.25623.1.1.4.2021.1439.1   1.3.6.1.4.1.25623.1.0.844915   1.3.6.1.4.1.25623.1.0.879492   1.3.6.1.4.1.25623.1.1.2.2021.2347   1.3.6.1.4.1.25623.1.0.879543   1.3.6.1.4.1.25623.1.0.146152   1.3.6.1.4.1.25623.1.1.2.2021.2256   1.3.6.1.4.1.25623.1.1.4.2021.1445.1   1.3.6.1.4.1.25623.1.0.883348   1.3.6.1.4.1.25623.1.0.145916   1.3.6.1.4.1.25623.1.1.2.2021.2200   1.3.6.1.4.1.25623.1.1.2.2021.2179   1.3.6.1.4.1.25623.1.1.4.2021.14709.1   1.3.6.1.4.1.25623.1.1.2.2022.1145   1.3.6.1.4.1.25623.1.1.4.2021.1438.1
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-20254 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3EP2VJ73OVBPVSOSTVOMGIEQA3MWF6F7/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZAF6L2M6CNAJ2YYYGXPWETTW5YLCWTVT/ https://security.gentoo.org/glsa/202105-22 https://security.netapp.com/advisory/ntap-20210430-0001/ https://bugzilla.redhat.com/show_bug.cgi?id=1949442 https://bugzilla.redhat.com/show_bug.cgi?id=1949442 https://www.samba.org/samba/security/CVE-2021-20254.html https://www.samba.org/samba/security/CVE-2021-20254.html https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html