CVE-2023-52440

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52440
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52440.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52440
Downstream
Published
2024-02-21T08:15:45Z
Modified
2025-07-29T11:03:54.907945Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix slub overflow in ksmbddecodentlmsspauthblob()

If authblob->SessionKey.Length is bigger than session key size(CIFSKEYSIZE), slub overflow can happen in key exchange codes. cifsarc4crypt copy to session key array from SessionKey from client.

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.52-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.5.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}