CVE-2023-35942

Summary

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, gRPC access loggers using listener's global scope can cause a use-after-free crash when the listener is drained. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, disable gRPC access log or stop listener update.

Affected Software

VendorProductVersion RangeStatus
envoyproxyenvoy>= 1.26.0, < 1.26.4affected
envoyproxyenvoy>= 1.25.0, < 1.25.9affected
envoyproxyenvoy>= 1.24.0, < 1.24.10affected
envoyproxyenvoy< 1.23.12affected

Weaknesses

  • CWE-416: CWE-416: Use After Free

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References