# Nervos CKB calculation of program load cycles may be missed when executing in resume mode

Source: https://junglewise.ai/threats/nervos-ckb-calculation-of-program-load-cycles-may-be-missed-when-23218a0c  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-02-08  
License: CC BY 4.0 with a link back

Severity: info · Published 2023-02-08

Nervos CKB calculation of program load cycles may be missed when executing in resume mode

Technologies: [ckb (crates.io)](https://junglewise.ai/threats/technologies/ckb). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 8 February 2023.

**Which products and versions are affected?** ckb (crates.io) SEMVER:introduced=0.100.0.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected?** Check whether you run ckb (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- ckb (crates.io) SEMVER:introduced=0.100.0

## Related threats

- [Nervos CKB Permit load cell data from memory](https://junglewise.ai/threats/nervos-ckb-permit-load-cell-data-from-memory-0367f10d)
- [Nervos CKB Pool does not remove the conflicting transactions from the statistics](https://junglewise.ai/threats/nervos-ckb-pool-does-not-remove-the-conflicting-transactions-from-the-58565ef3)
- [Nervos CKB Transaction which calls syscall load_cell_data_hash has nondeterministic result](https://junglewise.ai/threats/nervos-ckb-transaction-which-calls-syscall-load-cell-data-hash-has-11b6a6fd)
- [Nervos CKB Snappy decompress length can be very large and causes out of memory error](https://junglewise.ai/threats/nervos-ckb-snappy-decompress-length-can-be-very-large-and-causes-out-of-2106ce01)
- [Nervos CKB Panic on malformed input](https://junglewise.ai/threats/nervos-ckb-panic-on-malformed-input-46fdf717)