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redhatRedHatRHSA-2021:4843
HistoryNov 29, 2021 - 12:29 p.m.

(RHSA-2021:4843) Important: samba security update

2021-11-2912:29:23
access.redhat.com
29

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:C/I:C/A:N

0.001 Low

EPSS

Percentile

48.7%

JSON

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.

Security Fix(es):

  • samba: SMB1 client connections can be downgraded to plaintext authentication (CVE-2016-2124)

  • samba: Subsequent DCE/RPC fragment injection vulnerability (CVE-2021-23192)

  • samba: A user in an AD Domain could become root on domain members (CVE-2020-25717)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

All users of Samba with Red Hat Gluster Storage are advised to upgrade to these updated packages.

OSVersionArchitecturePackageVersionFilename
RedHat8x86_64samba-test-debuginfo< 4.14.5-204.el8rhgssamba-test-debuginfo-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba-winbind-modules-debuginfo< 4.14.5-204.el8rhgssamba-winbind-modules-debuginfo-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba-test-libs-debuginfo< 4.14.5-204.el8rhgssamba-test-libs-debuginfo-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64libwbclient-devel< 4.14.5-204.el8rhgslibwbclient-devel-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba-winbind-clients-debuginfo< 4.14.5-204.el8rhgssamba-winbind-clients-debuginfo-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba< 4.14.5-204.el8rhgssamba-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64libsmbclient-devel< 4.14.5-204.el8rhgslibsmbclient-devel-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba-winbind-modules< 4.14.5-204.el8rhgssamba-winbind-modules-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64samba-winbind-clients< 4.14.5-204.el8rhgssamba-winbind-clients-4.14.5-204.el8rhgs.x86_64.rpm
RedHat8x86_64ctdb< 4.14.5-204.el8rhgsctdb-4.14.5-204.el8rhgs.x86_64.rpm
Rows per page:
1-10 of 421

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2021-11-09 00:00:00
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8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

8.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:C/I:C/A:N

0.001 Low

EPSS

Percentile

48.7%

JSON
Related for RHSA-2021:4843
nessus54suse5oraclelinux2almalinux2rocky2redhat10osv15centos2amazon2cloudfoundry2ubuntu5altlinux1fedora5freebsd1cisa1mageia1debian5prion3alpinelinux3ibm4cnvd3redhatcve3cve3debiancve3veracode3ubuntucve3samba4cbl_mariner3f53avleonov1gentoo1