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Critical: samba

Description

**Issue Overview:** A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required. (CVE-2016-2124) A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation. (CVE-2020-25717) 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) Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution (CVE-2021-44142) **Affected Packages:** samba **Issue Correction:** Run _yum update samba_ to update your system. **New Packages:** i686:     ctdb-tests-4.10.16-18.59.amzn1.i686     libwbclient-4.10.16-18.59.amzn1.i686     samba-python-4.10.16-18.59.amzn1.i686     ctdb-4.10.16-18.59.amzn1.i686     samba-client-libs-4.10.16-18.59.amzn1.i686     samba-common-libs-4.10.16-18.59.amzn1.i686     samba-winbind-clients-4.10.16-18.59.amzn1.i686     libwbclient-devel-4.10.16-18.59.amzn1.i686     samba-devel-4.10.16-18.59.amzn1.i686     libsmbclient-devel-4.10.16-18.59.amzn1.i686     samba-test-libs-4.10.16-18.59.amzn1.i686     samba-test-4.10.16-18.59.amzn1.i686     samba-debuginfo-4.10.16-18.59.amzn1.i686     samba-4.10.16-18.59.amzn1.i686     samba-winbind-modules-4.10.16-18.59.amzn1.i686     samba-winbind-krb5-locator-4.10.16-18.59.amzn1.i686     libsmbclient-4.10.16-18.59.amzn1.i686     samba-winbind-4.10.16-18.59.amzn1.i686     samba-common-tools-4.10.16-18.59.amzn1.i686     samba-libs-4.10.16-18.59.amzn1.i686     samba-krb5-printing-4.10.16-18.59.amzn1.i686     samba-client-4.10.16-18.59.amzn1.i686     samba-python-test-4.10.16-18.59.amzn1.i686 noarch:     samba-pidl-4.10.16-18.59.amzn1.noarch     samba-common-4.10.16-18.59.amzn1.noarch src:     samba-4.10.16-18.59.amzn1.src x86_64:     samba-4.10.16-18.59.amzn1.x86_64     samba-winbind-clients-4.10.16-18.59.amzn1.x86_64     libsmbclient-4.10.16-18.59.amzn1.x86_64     libwbclient-devel-4.10.16-18.59.amzn1.x86_64     libsmbclient-devel-4.10.16-18.59.amzn1.x86_64     samba-winbind-4.10.16-18.59.amzn1.x86_64     samba-test-libs-4.10.16-18.59.amzn1.x86_64     samba-winbind-krb5-locator-4.10.16-18.59.amzn1.x86_64     samba-python-test-4.10.16-18.59.amzn1.x86_64     samba-debuginfo-4.10.16-18.59.amzn1.x86_64     libwbclient-4.10.16-18.59.amzn1.x86_64     ctdb-4.10.16-18.59.amzn1.x86_64     samba-client-4.10.16-18.59.amzn1.x86_64     samba-devel-4.10.16-18.59.amzn1.x86_64     samba-test-4.10.16-18.59.amzn1.x86_64     samba-krb5-printing-4.10.16-18.59.amzn1.x86_64     samba-client-libs-4.10.16-18.59.amzn1.x86_64     samba-libs-4.10.16-18.59.amzn1.x86_64     samba-winbind-modules-4.10.16-18.59.amzn1.x86_64     samba-python-4.10.16-18.59.amzn1.x86_64     samba-common-libs-4.10.16-18.59.amzn1.x86_64     ctdb-tests-4.10.16-18.59.amzn1.x86_64     samba-common-tools-4.10.16-18.59.amzn1.x86_64 ### Additional References Red Hat: [CVE-2016-2124](<https://access.redhat.com/security/cve/CVE-2016-2124>), [CVE-2020-25717](<https://access.redhat.com/security/cve/CVE-2020-25717>), [CVE-2021-20254](<https://access.redhat.com/security/cve/CVE-2021-20254>), [CVE-2021-44142](<https://access.redhat.com/security/cve/CVE-2021-44142>) Mitre: [CVE-2016-2124](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2124>), [CVE-2020-25717](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25717>), [CVE-2021-20254](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20254>), [CVE-2021-44142](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44142>)


Affected Package


OS OS Version Package Name Package Version
Amazon Linux 1 ctdb-tests 4.10.16-18.59.amzn1
Amazon Linux 1 libwbclient 4.10.16-18.59.amzn1
Amazon Linux 1 samba-python 4.10.16-18.59.amzn1
Amazon Linux 1 ctdb 4.10.16-18.59.amzn1
Amazon Linux 1 samba-client-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-common-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-clients 4.10.16-18.59.amzn1
Amazon Linux 1 libwbclient-devel 4.10.16-18.59.amzn1
Amazon Linux 1 samba-devel 4.10.16-18.59.amzn1
Amazon Linux 1 libsmbclient-devel 4.10.16-18.59.amzn1
Amazon Linux 1 samba-test-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-test 4.10.16-18.59.amzn1
Amazon Linux 1 samba-debuginfo 4.10.16-18.59.amzn1
Amazon Linux 1 samba 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-modules 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-krb5-locator 4.10.16-18.59.amzn1
Amazon Linux 1 libsmbclient 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind 4.10.16-18.59.amzn1
Amazon Linux 1 samba-common-tools 4.10.16-18.59.amzn1
Amazon Linux 1 samba-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-krb5-printing 4.10.16-18.59.amzn1
Amazon Linux 1 samba-client 4.10.16-18.59.amzn1
Amazon Linux 1 samba-python-test 4.10.16-18.59.amzn1
Amazon Linux 1 samba-pidl 4.10.16-18.59.amzn1
Amazon Linux 1 samba-common 4.10.16-18.59.amzn1
Amazon Linux 1 samba 4.10.16-18.59.amzn1
Amazon Linux 1 samba 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-clients 4.10.16-18.59.amzn1
Amazon Linux 1 libsmbclient 4.10.16-18.59.amzn1
Amazon Linux 1 libwbclient-devel 4.10.16-18.59.amzn1
Amazon Linux 1 libsmbclient-devel 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind 4.10.16-18.59.amzn1
Amazon Linux 1 samba-test-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-krb5-locator 4.10.16-18.59.amzn1
Amazon Linux 1 samba-python-test 4.10.16-18.59.amzn1
Amazon Linux 1 samba-debuginfo 4.10.16-18.59.amzn1
Amazon Linux 1 libwbclient 4.10.16-18.59.amzn1
Amazon Linux 1 ctdb 4.10.16-18.59.amzn1
Amazon Linux 1 samba-client 4.10.16-18.59.amzn1
Amazon Linux 1 samba-devel 4.10.16-18.59.amzn1
Amazon Linux 1 samba-test 4.10.16-18.59.amzn1
Amazon Linux 1 samba-krb5-printing 4.10.16-18.59.amzn1
Amazon Linux 1 samba-client-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-libs 4.10.16-18.59.amzn1
Amazon Linux 1 samba-winbind-modules 4.10.16-18.59.amzn1
Amazon Linux 1 samba-python 4.10.16-18.59.amzn1
Amazon Linux 1 samba-common-libs 4.10.16-18.59.amzn1
Amazon Linux 1 ctdb-tests 4.10.16-18.59.amzn1
Amazon Linux 1 samba-common-tools 4.10.16-18.59.amzn1

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