Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-52441— ksmbd: fix out of bounds in init_smb2_rsp_hdr()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 ksmbd 模块的 init_smb2_rsp_hdr() 方法中存在越界问题。

CVSS 9.1 · Critical EPSS 0.68% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 51a8534c0f35c0401e45f1055f914729cad98bf9< 5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b affected
0b3ec5671ac06829ccebdaeec05acedfec327f42< 330d900620dfc9893011d725b3620cd2ee0bc2bc affected
39b291b86b5988bf8753c3874d5c773399d09b96< aa669ef229ae8dd779da9caa24e254964545895f affected
39b291b86b5988bf8753c3874d5c773399d09b96< 536bb492d39bb6c080c92f31e8a55fe9934f452b affected
cc32cd98a0aee4cc3eb611cbce11795b1aaa738a affected
5.15.105< 5.15.145 affected
6.1.22< 6.1.53 affected
6.2.9< 6.3 affected
… +6 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-52441

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ksmbd: fix out of bounds in init_smb2_rsp_hdr()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in init_smb2_rsp_hdr() If client send smb2 negotiate request and then send smb1 negotiate request, init_smb2_rsp_hdr is called for smb1 negotiate request since need_neg is set to false. This patch ignore smb1 packets after ->need_neg is set to false.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 ksmbd 模块的 init_smb2_rsp_hdr() 方法中存在越界问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 51a8534c0f35c0401e45f1055f914729cad98bf9 ~ 5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b -
Linux Linux 6.3 -

II. Public POCs for CVE-2023-52441

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-52441

请登录查看更多情报信息。

Mailing List Discussions for CVE-2023-52441 (1)

Other References for CVE-2023-52441 (4)

Same Patch Batch · Linux · 2024-02-21 · 7 CVEs total

CVE-2024-26585 9.8 CRITICAL tls: fix race between tx work scheduling and socket close
CVE-2024-26583 9.8 CRITICAL tls: fix race between async notify and socket close
CVE-2024-26584 9.8 CRITICAL net: tls: handle backlogging of crypto requests
CVE-2024-26582 9.8 CRITICAL net: tls: fix use-after-free with partial reads and async decrypt
CVE-2023-52440 9.8 CRITICAL ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
CVE-2023-52442 9.1 CRITICAL ksmbd: validate session id and tree id in compound request

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52441

No comments yet

Leave a comment