CVE-2021-43398

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/11/2021
Last modified:
04/08/2024

Description

Crypto++ (aka Cryptopp) 8.6.0 and earlier contains a timing leakage in MakePublicKey(). There is a clear correlation between execution time and private key length, which may cause disclosure of the length information of the private key. This might allow attackers to conduct timing attacks. NOTE: this report is disputed by the vendor and multiple third parties. The execution-time differences are intentional. A user may make a choice of a longer key as a tradeoff between strength and performance. In making this choice, the amount of information leaked to an adversary is of infinitesimal value

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:* 8.6.0 (including)