CVE-2022-2127

Summary

An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 80:4.18.6-1.el8 < *unaffected
Red HatRed Hat Enterprise Linux 80:4.18.6-1.el8 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:4.15.5-15.el8_6 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:4.17.5-5.el8_8 < *unaffected
Red HatRed Hat Enterprise Linux 90:4.18.6-100.el9 < *unaffected
Red HatRed Hat Enterprise Linux 90:4.18.6-100.el9 < *unaffected
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 80:4.15.5-15.el8_6 < *unaffected

Weaknesses

  • CWE-125: Out-of-bounds Read

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References