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Vulnerability Change Records for CVE-2021-43398

Change History

CVE Modified by MITRE 12/17/2021 11:15:08 AM

Action Type Old Value New Value
Changed 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.
** DISPUTED ** 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.
Added Reference

								
							
							
						
https://github.com/weidai11/cryptopp/issues/1080#issuecomment-996492222 [No Types Assigned]