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CVE-2022-47940

Date: December 22, 2022

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

Language: C

Severity Score

8.1

Related Resources (8)

Url: https://security-tracker.debian.org/tracker/CVE-2022-47940

Url: http://www.openwall.com/lists/oss-security/2022/12/23/10

Url: https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.18

Url: https://github.com/torvalds/linux/commit/158a66b245739e15858de42c0ba60fcf3de9b8e6

Url: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=158a66b245739e15858de42c0ba60fcf3de9b8e6

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-47940

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-47940

Url: https://www.mend.io/vulnerability-database/CVE-2022-47940

Severity Score

8.1

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:	8.1
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	HIGH

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