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
Impact
Base Score 3.x
5.30
Severity 3.x
MEDIUM
Base Score 2.0
5.00
Severity 2.0
MEDIUM
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:* | 8.6.0 (including) |
To consult the complete list of CPE names with products and versions, see this page