CVE-2024-6443

Summary

In utf8_trunc in zephyr/lib/utils/utf8.c, last_byte_p can point to one byte before the string pointer if the string is empty.

Affected Software

Weaknesses

• CWE-125: Out-of-bounds Read
• CWE-787: Out-of-bounds Write

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-gg46-3rh2-v765

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