CVE-2023-53377

Summary

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

cifs: prevent use-after-free by freeing the cfile later

In smb2_compound_op we have a possible use-after-free which can cause hard to debug problems later on.

This was revealed during stress testing with KASAN enabled kernel. Fixing it by moving the cfile free call to a few lines below, after the usage.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux76894f3e2f71177747b8b4763fb180e800279585 < 4fe07d55a5461e66a55fbefb57f85ff0facea32baffected
LinuxLinux76894f3e2f71177747b8b4763fb180e800279585 < b6353518ef8180816e863aa23b06456f395404d6affected
LinuxLinux76894f3e2f71177747b8b4763fb180e800279585 < d017880782cf71f8820ee4a2002843893176501daffected
LinuxLinux76894f3e2f71177747b8b4763fb180e800279585 < 33f736187d08f6bc822117629f263b97d3df4165affected
LinuxLinux2d046892a493d9760c35fdaefc3017f27f91b621affected
LinuxLinux6.0.16 < 6.1affected
LinuxLinux6.1affected
LinuxLinux0 < 6.1unaffected
LinuxLinux6.1.39 <= 6.1.*unaffected
LinuxLinux6.3.13 <= 6.3.*unaffected
LinuxLinux6.4.4 <= 6.4.*unaffected
LinuxLinux6.5 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References