CVE-2021-27433

Summary

ARM mbed-ualloc memory library version 1.3.0 is vulnerable to integer wrap-around in function mbed_krbs, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Affected Software

Weaknesses

• CWE-190: CWE-190 Integer Overflow or Wraparound

ADP Enrichment

CVE Program Container

Additional References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
• https://github.com/ARMmbed/mbed-os/pull/14408

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04
• https://github.com/ARMmbed/mbed-os/pull/14408

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