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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2023-4130

ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea() There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of current smb2_ea_info. ksmbd need to validate buffer length Before accessing the next ea. ksmbd should check buffer length using buf_len, not next variable. next is the start offset of current ea that got from previous ea.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < aeb974907642be095e38ecb1a400ca583958b2b0affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < f339d76a3a972601d0738b881b099d49ebbdc3a2affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < 4bf629262f9118ee91b1c3a518ebf2b3bcb22180affected
  • e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 to < 79ed288cef201f1f212dfb934bcaac75572fb8f6affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 5.15.127 to ≤ 5.15.*unaffected
  • 6.1.46 to ≤ 6.1.*unaffected
  • 6.4.11 to ≤ 6.4.*unaffected
  • 6.5 to ≤ *unaffected

References