CVE-2021-3798

EPSS 0.3%CWE-200

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

23 Aug 2022Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

A flaw was found in openCryptoki. The openCryptoki Soft token does not check if an EC key is valid when an EC key is created via C_CreateObject, nor when C_DeriveKey is used with ECDH public data. This may allow a malicious user to extract the private key by performing an invalid curve attack.

Affected products

n/a · opencryptoki

References

https://access.redhat.com/security/cve/CVE-2021-3798 https://bugzilla.redhat.com/show_bug.cgi?id=1990591 https://github.com/opencryptoki/opencryptoki/commit/4e3b43c3d8844402c04a66b55c6c940f965109f0 https://github.com/opencryptoki/opencryptoki/pull/402