VulnerabilityModified
CVE-2021-3798
This may allow a malicious user to extract the private key by performing an invalid curve attack.
MEDIUM 5.5EPSS 0.27%
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.27% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- opencryptoki project/opencryptoki
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2021-3798Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1990591Issue Tracking, Patch, Third Party Advisory
- https://github.com/opencryptoki/opencryptoki/commit/4e3b43c3d8844402c04a66b55c6c940f965109f0Patch, Third Party Advisory
- https://github.com/opencryptoki/opencryptoki/pull/402Patch, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3798Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1990591Issue Tracking, Patch, Third Party Advisory
- https://github.com/opencryptoki/opencryptoki/commit/4e3b43c3d8844402c04a66b55c6c940f965109f0Patch, Third Party Advisory
- https://github.com/opencryptoki/opencryptoki/pull/402Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.