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samba: Unprivileged user can crash winbind

🗓️ 05 May 2021 07:40:56Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

Samba winbind null pointer dereference allows local user to crash winbind, causing denial of service.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Vulnerabilities in the Linux Kernel, Samba, Sudo, Python, and tcmu-runner affect IBM Spectrum Protect Plus
6 May 202202:35
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Samba vulnerability issues in IBM Storwize V7000 Unified
14 Oct 202116:55
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities found in Spectrum Scale affect IBM Cloud Pak System
19 May 202117:27
–ibm
IBM Security Bulletins		Security Bulletin: Samba for IBM i is affected by CVE-2020-14323 and CVE-2020-14318
11 Nov 202020:50
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in samba affect IBM Spectrum Scale SMB protocol access method.
25 Jan 202105:03
–ibm
ALT Linux		Security fix for the ALT Linux 10 package samba version 4.12.9-alt1
29 Oct 202000:00
–altlinux
FreeBSD		samba -- Multiple Vulnerabilities
29 Oct 202000:00
–freebsd
Tenable Nessus		Amazon Linux 2 : samba (ALAS-2021-1585)
7 Jan 202100:00
–nessus
Tenable Nessus		Amazon Linux AMI : samba (ALAS-2021-1469)
14 Jan 202100:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0077: samba (ALINUX3-SA-2021:0077)
14 May 202500:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64ctdb4.13.7-101.el8rhgsctdb-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64ctdb-debuginfo4.13.7-101.el8rhgsctdb-debuginfo-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64ctdb-tests-debuginfo4.13.7-101.el8rhgsctdb-tests-debuginfo-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libsmbclient4.13.7-101.el8rhgslibsmbclient-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libsmbclient-debuginfo4.13.7-101.el8rhgslibsmbclient-debuginfo-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libsmbclient-devel4.13.7-101.el8rhgslibsmbclient-devel-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libwbclient4.13.7-101.el8rhgslibwbclient-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libwbclient-debuginfo4.13.7-101.el8rhgslibwbclient-debuginfo-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64libwbclient-devel4.13.7-101.el8rhgslibwbclient-devel-4.13.7-101.el8rhgs.x86_64.rpm
Red Hat Enterprise Linux8x86_64python3-samba4.13.7-101.el8rhgspython3-samba-4.13.7-101.el8rhgs.x86_64.rpm
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23 Feb 2026 19:17Current
6.8Medium risk
Vulners AI Score6.8
CVSS 22.1
CVSS 3.15.5
EPSS0.00621
SSVC
CWE-170
samba vulnerabilitywinbind crashlocal usernull pointer dereferencedenial of service
2