CVE-2023-52440

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < bd554ed4fdc3d38404a1c43d428432577573e809affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 30fd6521b2fbd9b767e438e31945e5ea3e3a2fbaaffected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < ecd7e1c562cb08e41957fcd4b0e404de5ab38e20affected
LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf < 4b081ce0d830b684fdf967abc3696d1261387254affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.145 <= 5.15.*unaffected
LinuxLinux6.1.52 <= 6.1.*unaffected
LinuxLinux6.4.15 <= 6.4.*unaffected
LinuxLinux6.5.2 <= 6.5.*unaffected
LinuxLinux6.6 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References