CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
96.3%
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
Red Hat: CVE-2016-2124, CVE-2020-25717, CVE-2021-20254, CVE-2021-44142
Mitre: CVE-2016-2124, CVE-2020-25717, CVE-2021-20254, CVE-2021-44142
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | ctdb-tests | < 4.10.16-18.59.amzn1 | ctdb-tests-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | libwbclient | < 4.10.16-18.59.amzn1 | libwbclient-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | samba-python | < 4.10.16-18.59.amzn1 | samba-python-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | ctdb | < 4.10.16-18.59.amzn1 | ctdb-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | samba-client-libs | < 4.10.16-18.59.amzn1 | samba-client-libs-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | samba-common-libs | < 4.10.16-18.59.amzn1 | samba-common-libs-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | samba-winbind-clients | < 4.10.16-18.59.amzn1 | samba-winbind-clients-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | libwbclient-devel | < 4.10.16-18.59.amzn1 | libwbclient-devel-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | samba-devel | < 4.10.16-18.59.amzn1 | samba-devel-4.10.16-18.59.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | libsmbclient-devel | < 4.10.16-18.59.amzn1 | libsmbclient-devel-4.10.16-18.59.amzn1.i686.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
96.3%