CVE-2021-20316

A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2021-20316	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2009673	Issue Tracking Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=14842	Issue Tracking Vendor Advisory
https://security-tracker.debian.org/tracker/CVE-2021-20316	Mitigation Third Party Advisory
https://security.gentoo.org/glsa/202309-06
https://www.samba.org/samba/security/CVE-2021-20316.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:a:redhat:virtualization_host:4.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_aus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_tus:8.6:::::::*

History

No history.

Information

Published : 2022-08-23 16:15

Updated : 2023-09-17 09:15

NVD link : CVE-2021-20316

Mitre link : CVE-2021-20316

CVE.ORG link : CVE-2021-20316

JSON object : View

Products Affected

redhat

virtualization_host
enterprise_linux_aus
enterprise_linux_eus
enterprise_linux
enterprise_linux_tus

samba

samba

debian

debian_linux

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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