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CVE-2023-52440— ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()

EPSS 0.48% · P65
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I. Basic Information for CVE-2023-52440

Vulnerability Information
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Vulnerability Title
ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 的 ksmbd_decode_ntlmssp_auth_blob() 函数存在溢出问题。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0626e6641f6b467447c81dd7678a69c66f7746cf ~ bd554ed4fdc3d38404a1c43d428432577573e809 -
LinuxLinux 5.15 -

II. Public POCs for CVE-2023-52440

#POC DescriptionSource LinkShenlong Link
1Authenticated 0-click RCE against Linux 6.1.45 for CVE-2023-52440 and CVE-2023-4130https://github.com/BitsByWill/ksmbd-n-dayPOC Details
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III. Intelligence Information for CVE-2023-52440

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

CVE-2024-26585tls: fix race between tx work scheduling and socket close
CVE-2024-26583tls: fix race between async notify and socket close
CVE-2024-26584net: tls: handle backlogging of crypto requests
CVE-2024-26582net: tls: fix use-after-free with partial reads and async decrypt
CVE-2023-52442ksmbd: validate session id and tree id in compound request
CVE-2023-52441ksmbd: fix out of bounds in init_smb2_rsp_hdr()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52440

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