CVE-2021-43393

CVSS V2 Low 1.9 CVSS V3 Medium 6.2
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.
Overview
  • CVE ID
  • CVE-2021-43393
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-04T13:15:08
  • Last Modified Date
  • 2022-03-10T15:05:00
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:st:stsafe-j_firmware:1.1.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:st:stsafe-j:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:st:j-safe3_firmware:1.2.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:st:j-safe3:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:N/I:P/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 1.9
  • Severity
  • LOW
  • Exploitability Score
  • 3.4
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 6.2
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.5
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.cert.ssi.gouv.fr/avis/CERTFR-2022-AVI-169/ Third Party Advisory
https://community.st.com/s/toparticles Vendor Advisory
History
Created Old Value New Value Data Type Notes
2022-05-10 15:46:31 Added to TrackCVE
2022-12-06 11:18:46 2022-03-04T13:15Z 2022-03-04T13:15:08 CVE Published Date updated
2022-12-06 11:18:46 2022-03-10T15:05:00 CVE Modified Date updated
2022-12-06 11:18:46 Analyzed Vulnerability Status updated