Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
🦀 crates.io
Not in CISA KEV

GHSA-mcmr-49x3-4jqm ckb

GHSA-mcmr-49x3-4jqm is a security vulnerability in ckb. A fix is available for ckb — see the affected versions and patch details below.

ckb type_id script resume may randomly fail

Published
Nov 2, 2022
Updated
Nov 2, 2022
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 2, 2022 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🦀ckb

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

Impact

https://github.com/nervosnetwork/ckb/blob/v0.101.2/script/src/verify.rs#L871-L879 TypeIdSystemScript resume handle is not correct when max_cycles is not enough, ScriptError::ExceededMaximumCycles will be raised directly ranther than suspend as expect, and also because script_group execution order is random, so this will happen randomly.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🦀crates.iockb0.100.0&&< 0.102.00.102.0cargo update -p ckb --precise 0.102.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ckb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update ckb to 0.102.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mcmr-49x3-4jqm is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-mcmr-49x3-4jqm can be triaged on real exposure rather than presence alone.

Tailored to GHSA-mcmr-49x3-4jqm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact https://github.com/nervosnetwork/ckb/blob/v0.101.2/script/src/verify.rs#L871-L879 TypeIdSystemScript resume handle is not correct when max_cycles is not enough, `ScriptError::ExceededMaximumCycles` will be raised directly ranther than suspend as expect, and also because script_group execution order is random, so this will happen randomly.
O3 Security · Impact-Aware SCA

Is GHSA-mcmr-49x3-4jqm in your dependencies?

O3 Security finds GHSA-mcmr-49x3-4jqm across crates.io dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-mcmr-49x3-4jqm: ckb | O3 Security