CVE-2024-7883

Summary

When using Arm Cortex-M Security Extensions (CMSE), Secure stack contents can be leaked to Non-secure state via floating-point registers when a Secure to Non-secure function call is made that returns a floating-point value and when this is the first use of floating-point since entering Secure state. This allows an attacker to read a limited quantity of Secure stack contents with an impact on confidentiality. This issue is specific to code generated using LLVM-based compilers.

Affected Software

VendorProductVersion RangeStatus
Arm LtdArm Compiler for Embedded6.6 <= 6.22affected
Arm LtdArm Compiler for Embedded FuSa 6.16LTSAll versionsaffected
Arm LtdArm Compiler for Embedded FuSa 6.21All versionsaffected
Arm LtdArm Compiler for Functional Safety 6.6All versionsaffected
Arm LtdCLang13 <= 19affected

Weaknesses

  • CWE-226: CWE-226 Sensitive Information in Resource Not Removed Before Reuse

ADP Enrichment

CISA ADP Vulnrichment

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

References