Cryptographic issues in Bouncy Castle

Published: 2018-06-04 | Updated: 2018-07-05
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-1000341
Exploitation vector Network
Public exploit N/A
Vulnerable software
The Bouncy Castle Crypto Package For Java
Universal components / Libraries / Libraries used by multiple products

Vendor Legion of the Bouncy Castle Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cryptographic issues

EUVDB-ID: #VU13589

Risk: Low


CVE-ID: CVE-2016-1000341


Exploit availability:


The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists in Bouncy Castle JCE Provider implementation of DSA signature generation process. The attacker with ability to observe timings for the generation of signatures can gain information about the signature's k value and ultimately the private value as well.


Install updates from vendor's website.

Vulnerable software versions

The Bouncy Castle Crypto Package For Java: 1.41 - 1.55

Fixed software versions

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?