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CVE-2025-40099

cifs: parse_dfs_referrals: prevent oob on malformed input

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.1.158, 6.6.114, 6.12.55, 6.17.5
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

In the Linux kernel, the following vulnerability has been resolved: cifs: parse_dfs_referrals: prevent oob on malformed input Malicious SMB server can send invalid reply to FSCTL_DFS_GET_REFERRALS • reply smaller than sizeof(struct get_dfs_referral_rsp) • reply with number of referrals smaller than NumberOfReferrals in the header Processing of such replies will cause oob. Return -EINVAL error on such replies to prevent oob-s.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 4ecce920e13ace16a5ba45efe8909946c28fb2ad · fixed in cfacc7441f760e4a73cc71b6ff1635261d534657; From 4ecce920e13ace16a5ba45efe8909946c28fb2ad · fixed in 15c73964da9df994302f579ed14ee5fdbce7a332; From 4ecce920e13ace16a5ba45efe8909946c28fb2ad · fixed in 8bc4a8d39bac23d8b044fd3e2dbfd965f1d9b058; From 4ecce920e13ace16a5ba45efe8909946c28fb2ad · fixed in bb0f2e66e1ac043a5b238f5bcab4f26f3c317039; From 4ecce920e13ace16a5ba45efe8909946c28fb2ad · fixed in 6447b0e355562a1ff748c4a2ffb89aae7e84d2c9

  • Linux Linux

    4.11

  • KernelLinux

    From 4.11.0 · fixed in 6.1.158; From 6.2.0 · fixed in 6.6.114; From 6.7.0 · fixed in 6.12.55; From 6.13.0 · fixed in 6.17.5

References 5

git.kernel.org