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CVE-2024-26811— ksmbd: validate payload size in ipc response

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，该漏洞源于未验证ipc响应中的有效载荷大小。

CVSS 9.8 · Critical EPSS 0.79% · P55

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 0626e6641f6b467447c81dd7678a69c66f7746cf< 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 51a6c2af9d20203ddeeaf73314ba8854b38d01bd affected
0626e6641f6b467447c81dd7678a69c66f7746cf< a637fabac554270a851033f5ab402ecb90bc479c affected
0626e6641f6b467447c81dd7678a69c66f7746cf< 76af689a45aa44714b46d1a7de4ffdf851ded896 affected
0626e6641f6b467447c81dd7678a69c66f7746cf< a677ebd8ca2f2632ccdecbad7b87641274e15aac affected
5.15 affected
< 5.15 unaffected
5.15.157≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-26811

Vulnerability Information
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Vulnerability Title
ksmbd: validate payload size in ipc response
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate payload size in ipc response If installing malicious ksmbd-tools, ksmbd.mountd can return invalid ipc response to ksmbd kernel server. ksmbd should validate payload size of ipc response from ksmbd.mountd to avoid memory overrun or slab-out-of-bounds. This patch validate 3 ipc response that has payload.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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，该漏洞源于未验证ipc响应中的有效载荷大小。
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 0626e6641f6b467447c81dd7678a69c66f7746cf ~ 88b7f1143b15b29cccb8392b4f38e75b7bb3e300 -
Linux Linux 5.15 -

II. Public POCs for CVE-2024-26811

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III. Intelligence Information for CVE-2024-26811

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Mailing List Discussions for CVE-2024-26811 (3)

Other References for CVE-2024-26811 (5)

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26811

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