CVE-2022-47942

 

Published at: - 23-12-2022 05:15

Last modified: - 23-01-2023 07:54

Total changes: - 5

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. There is a heap-based buffer overflow in set_ntacl_dacl, related to use of SMB2_QUERY_INFO_HE after a malformed SMB2_SET_INFO_HE command.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://github.com/torvalds/linux/commit/8f0541186e9ad1b62accc9519cc2b7a7240272a7
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f0541186e9ad1b62accc9519cc2b7a7240272a7
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2
• [oss-security] 20221223 Re: Details on this supposed Linux Kernel ksmbd RCE-Mailing List, Third Party Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-22-1688/

 

Keywords

NVD

 

CVE-2022-47942

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures