NRDAX-T0122 - Integer Signedness Index OOB Crash

compute_amp · active · first seen 2026-07-07

provenance: Reproduced in NullRabbit's attack-reproduction pipeline

mechanism

CVE-2021-3121 (gogoproto 'skippy peanut butter'): unknown length-delimited field with a negative-length varint → pre-1.3.2 skip code does iNdEx+=length with no length<0 check → index out of bounds → p

instances (2)

chain	primitive	fidelity	origin	reproducer (bundle)	source
cosmos	cosmos_gogoproto_skippy	lab	reverse-engineered-cve	cosmos_gogoproto_skippy	https://osv.dev/vulnerability/CVE-2021-3121 ↗
ethereum	geth_les_skip_negative	lab	reverse-engineered-cve	geth_les_skip_negative	https://peckshield.medium.com/epod-ethereum-packet-of-death-cve-2018-12018-fc9ee944843e ↗

references

vendor-advisory: GHPR-scroll-tech-go-ethereum-1195

related (compute_amp)

NRDAX-T0005 - Array Deserialization Memcpy Corruption active NRDAX-T0006 - Async Runtime Blocking VM Execution active NRDAX-T0013 - Bloom Filter Divide-By-Zero Crash active NRDAX-T0076 - Expensive Debug RPC Compute Amplification active NRDAX-T0101 - Handshake Crypto Validation Bypass Crash active NRDAX-T0129 - Invalid Curve Point Panic active NRDAX-T0139 - Legacy Sighash Quadratic CPU Blowup active NRDAX-T0148 - Malformed KZG Proof Mismatch DoS active

cite

https://nrdax.com/techniques/NRDAX-T0122

plain

NRDAX Registry. Technique NRDAX-T0122.

bibtex

@misc{nrdax_NRDAX_T0122,
  title = {Integer Signedness Index OOB Crash (NRDAX-T0122)},
  howpublished = {NRDAX Registry},
  url = {https://nrdax.com/techniques/NRDAX-T0122},
}

json (csl)

{
  "id": "nrdax-NRDAX-T0122",
  "type": "dataset",
  "title": "Integer Signedness Index OOB Crash (NRDAX-T0122)",
  "URL": "https://nrdax.com/techniques/NRDAX-T0122",
  "publisher": "NRDAX Registry"
}