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CVE-2023-54250

ksmbd: avoid out of bounds access in decode_preauth_ctxt()

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

ksmbd: avoid out of bounds access in decode_preauth_ctxt()

Confirm that the accessed pneg_ctxt->HashAlgorithms address sits within
the SMB request boundary; deassemble_neg_contexts() only checks that the
eight byte smb2_neg_context header + (client controlled) DataLength are
within the packet boundary, which is insufficient.

Checking for sizeof(struct smb2_preauth_neg_context) is overkill given
that the type currently assumes SMB311_SALT_SIZE bytes of trailing Salt.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Version < 39f5b4b313b445c980a2a295bed28228c29228ed
Status affected
Version e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Version < a2f6ded41bec1d3be643c80a5eb97f1680309001
Status affected
Version e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Version < f02edb9debbd36f44efa7567031485892c7df60d
Status affected
Version e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Version < e7067a446264a7514fa1cfaa4052cdb6803bc6a2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.15
Status affected
Version 0
Version < 5.15
Status unaffected
Version <= 5.15.*
Version 5.15.145
Status unaffected
Version <= 6.1.*
Version 6.1.25
Status unaffected
Version <= 6.2.*
Version 6.2.12
Status unaffected
Version <= *
Version 6.3
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.099
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.