CVE-2024-36931

Summary

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

s390/cio: Ensure the copied buf is NUL terminated

Currently, we allocate a lbuf-sized kernel buffer and copy lbuf from userspace to that buffer. Later, we use scanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using scanf. Fix this issue by using memdup_user_nul instead.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa4f17cc726712a52122ad38540bc3ff3a052d1a4 < c9d48ce163305595ae20aee27774192476d5e6a5affected
LinuxLinuxa4f17cc726712a52122ad38540bc3ff3a052d1a4 < 10452edd175fcc4fd0f5ac782ed2a002e3e5d65caffected
LinuxLinuxa4f17cc726712a52122ad38540bc3ff3a052d1a4 < 84b38f48836662c4bfae646c014f4e981e16a2b2affected
LinuxLinuxa4f17cc726712a52122ad38540bc3ff3a052d1a4 < 06759ebaf75c19c87b2453a5e130e9e61e9b5d65affected
LinuxLinuxa4f17cc726712a52122ad38540bc3ff3a052d1a4 < da7c622cddd4fe36be69ca61e8c42e43cde94784affected
LinuxLinux5.13affected
LinuxLinux0 < 5.13unaffected
LinuxLinux5.15.159 <= 5.15.*unaffected
LinuxLinux6.1.91 <= 6.1.*unaffected
LinuxLinux6.6.31 <= 6.6.*unaffected
LinuxLinux6.8.10 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References