CVE-2022-47939 - Vulnerability Details - OpenCVE

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Linux	Linux Kernel

Configuration 1 [-]

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

No data.

References

Link	Providers
http://www.openwall.com/lists/oss-security/2022/12/23/10
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c
https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c
https://nvd.nist.gov/vuln/detail/CVE-2022-47939
https://www.cve.org/CVERecord?id=CVE-2022-47939
https://www.openwall.com/lists/oss-security/2022/12/22/9
https://www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/
https://www.zerodayinitiative.com/advisories/ZDI-22-1690/

History

Mon, 14 Apr 2025 19:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-12-23T00:00:00.000Z

Updated: 2025-04-14T18:38:27.723Z

Reserved: 2022-12-23T00:00:00.000Z

Link: CVE-2022-47939

Vulnrichment

Updated: 2024-08-03T15:02:36.591Z

NVD

Status : Modified

Published: 2022-12-23T16:15:12.290

Modified: 2025-04-14T19:15:32.793

Link: CVE-2022-47939

Redhat

Severity : Critical

Publid Date: 2022-12-22T00:00:00Z

Links: CVE-2022-47939 - Bugzilla

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