CVE-2023-40550

Summary

An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 70:15.8-3.el7 < *unaffected
Red HatRed Hat Enterprise Linux 70:15.8-1.el7 < *unaffected
Red HatRed Hat Enterprise Linux 80:15.8-4.el8_9 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support0:15.8-2.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service0:15.8-2.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions0:15.8-2.el8_2 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:15.8-2.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service0:15.8-2.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions0:15.8-2.el8_4 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:15.8-2.el8_6 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:15.8-2.el8 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:15.8-2.el8 < *unaffected
Red HatRed Hat Enterprise Linux 90:15.8-4.el9_3 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:15.8-3.el9 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:15.8-2.el9 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:15.8-2.el9 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:15.8-3.el9_2 < *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