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Bouncy Castle affected by timing side-channel for RSA key exchange ("The Marvin Attack")

Moderate severity GitHub Reviewed Published May 14, 2024 to the GitHub Advisory Database • Updated Jun 14, 2024

Package

nuget BouncyCastle (NuGet)

Affected versions

< 2.3.1

Patched versions

None
nuget BouncyCastle.Cryptography (NuGet)
< 2.3.1
2.3.1
maven org.bouncycastle:bcpkix-jdk14 (Maven)
< 1.78
1.78
maven org.bouncycastle:bcpkix-jdk15to18 (Maven)
< 1.78
1.78
maven org.bouncycastle:bcpkix-jdk18on (Maven)
< 1.78
1.78
maven org.bouncycastle:bcprov-jdk14 (Maven)
< 1.78
1.78
maven org.bouncycastle:bcprov-jdk15on (Maven)
< 1.78
1.78
maven org.bouncycastle:bcprov-jdk15to18 (Maven)
< 1.78
1.78
maven org.bouncycastle:bcprov-jdk18on (Maven)
< 1.78
1.78
maven org.bouncycastle:bctls-fips (Maven)
< 1.0.19
1.0.19
maven org.bouncycastle:bctls-jdk14 (Maven)
< 1.78
1.78
maven org.bouncycastle:bctls-jdk15to18 (Maven)
< 1.78
1.78
maven org.bouncycastle:bctls-jdk18on (Maven)
< 1.78
1.78

Description

An issue was discovered in Bouncy Castle Java TLS API and JSSE Provider before 1.78. Timing-based leakage may occur in RSA based handshakes because of exception processing.

References

Published by the National Vulnerability Database May 14, 2024
Published to the GitHub Advisory Database May 14, 2024
Reviewed May 14, 2024
Last updated Jun 14, 2024

Severity

Moderate
5.9
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

CVE ID

CVE-2024-30171

GHSA ID

GHSA-v435-xc8x-wvr9

Source code

No known source code
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