In the Bouncy Castle JCE Provider version 1.55 and earlier DSA signature generation is vulnerable to timing attack. Where timings can be closely observed for the generation of signatures, the lack of blinding in 1.55, or earlier, may allow an attacker to gain information about the signature's k value and ultimately the private value as well.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade bouncycastle | Feb 20, 2019 | Jun 4, 2018 |
| Suse | — | Upgrade bouncycastleUpgrade bouncycastle-pg | Jun 16, 2018 | Jun 4, 2018 |
| Ubuntu | — | Upgrade libbcmail-javaUpgrade libbcpg-javaUpgrade libbcpkix-javaUpgrade libbcprov-java | Aug 8, 2018 | Jun 4, 2018 |
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