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Fencer Intel
high —

GHSA-f6jh-hvg2-9525 json

crystals-go vulnerable to KyberSlash (timing side-channel attack for Kyber)

published 2y ago modified 2y ago also GO-2024-2469

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

### Impact On some platforms, when an attacker can time decapsulation of Kyber on forged cipher texts, they could possibly learn (parts of) the secret key.

### Patches Patched in https://github.com/kudelskisecurity/crystals-go/pull/21

### Note This library was written as part of a MsC student project in the Cybersecurity Team at Kudelski Security. It is not actively maintained anymore. It is only intended for research and testing. We discourage its use in any production environment. Kudelski Security does not use this library as part of their commercial offers or product. This has now been clarified on the project's README.

### References https://groups.google.com/a/list.nist.gov/g/pqc-forum/c/ldX0ThYJuBo http://kyberslash.cr.yp.to/

Patch / fix

  • go github.com/kudelskisecurity/crystals-go 0.0.0-20240116172146-2a6ca2d4e64d

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Affected packages

ecosystem package affected fixed in
go github.com/kudelskisecurity/crystals-go
<0.0.0-20240116172146-2a6ca2d4e64d
0.0.0-20240116172146-2a6ca2d4e64d

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.