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  2. CVE-2021-43398
ID CVE-2021-43398
Summary 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
References
Vulnerable Configurations
  • cpe:2.3:a:cryptopp:crypto\+\+:5.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.1:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.2:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.4:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.4:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.5:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.5:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.5.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.5.2:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.5.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.3:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.3:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.4:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.4:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:5.6.5:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:5.6.5:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:6.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:6.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:6.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:6.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:7.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:7.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.1.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.3.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.3.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.5.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.5.0:*:*:*:*:*:*:*
  • cpe:2.3:a:cryptopp:crypto\+\+:8.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:cryptopp:crypto\+\+:8.6.0:*:*:*:*:*:*:*
CVSS
Base: 5.0 (as of 04-08-2024 - 04:16)
Impact:
Exploitability:
CWE CWE-203
CAPEC
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
cvss-vector via4 AV:N/AC:L/Au:N/C:P/I:N/A:N
Last major update 04-08-2024 - 04:16
Published 04-11-2021 - 21:15
Last modified 04-08-2024 - 04:16
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