CVE-2021-43393
Last modified
CVE-2021-43393 is a medium-severity vulnerability rated 6.2/10 on the CVSS scale. STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to abuse signature verification. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to abuse signature verification. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE-J in closed configuration and J-SIGN (when signature verification is activated) but not for J-SAFE3 EPASS BAC and EAC products. It might also impact other products based on the J-SAFE-3 Java Card platform.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| St | Stsafe-J Firmware | 1.1.4 |
| St | J-Safe3 Firmware | 1.2.5 |
References
- https://community.st.com/s/toparticlesVendor Advisory
- https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169/Third Party Advisory
- https://community.st.com/s/toparticlesVendor Advisory
- https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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