Observable Discrepancy
CVE-2020-36424
Summary
An issue was discovered in Arm MbedTLS through 2.7.16, 2.8.0 through 2.16.7, 2.17.0 through 2.24.0. An attacker can recover a "private key" (for RSA or static Diffie-Hellman) via a side-channel attack against generation of base blinding/unblinding values.
- HIGH
- LOCAL
- NONE
- UNCHANGED
- NONE
- LOW
- HIGH
- NONE
CWE-203 - Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
References
Advisory Timeline
- Published