VulnerableCode Package Details - pkg:deb/ubuntu/samba@2:4.13.14%2Bdfsg-0ubuntu0.20.04.1

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Vulnerability	Summary	Fixed by
This package is not known to be affected by vulnerabilities.

Vulnerability

Summary

Fixed by

This package is not known to be affected by vulnerabilities.

Vulnerability	Summary	Aliases
VCID-c19s-mkvt-aaae	A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.	CVE-2021-3671
VCID-j27y-g1w7-aaaa	Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.	CVE-2020-25722
VCID-m7gw-h43m-aaag	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
VCID-ny1w-v2d1-aaaj	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.	CVE-2021-23192
VCID-qmfb-r5jc-aaaq	In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'association groups'. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid 'struct session_info'. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.	CVE-2021-3738
VCID-r2ub-pwv4-aaaa	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
VCID-sm2p-s4x5-aaae	A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.	CVE-2020-25719
VCID-svdc-81bn-aaak	A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets.	CVE-2020-25718
VCID-we9h-xchf-aaam	Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.	CVE-2020-25721

Vulnerability

Summary

Aliases

VCID-c19s-mkvt-aaae

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

CVE-2021-3671

VCID-j27y-g1w7-aaaa

Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.

CVE-2020-25722

VCID-m7gw-h43m-aaag

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

VCID-ny1w-v2d1-aaaj

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.

CVE-2021-23192

VCID-qmfb-r5jc-aaaq

In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'association groups'. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid 'struct session_info'. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.

CVE-2021-3738

VCID-r2ub-pwv4-aaaa

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

VCID-sm2p-s4x5-aaae

A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.

CVE-2020-25719

VCID-svdc-81bn-aaak

A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets.

CVE-2020-25718

VCID-we9h-xchf-aaam

Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.

CVE-2020-25721