CVE-2020-28052 — Vulnetix

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CVE-2020-28052 REJECTED

An issue was discovered in Legion of the Bouncy Castle BC Java 1.65 and 1.66. The OpenBSDBCrypt.checkPassword utility method compared incorrect data when checking the password, allowing incorrect passwords to indicate they were matching with previously hashed ones that were different.

EPSS 4.10% · 88.5th percentile

Risk Scores

EPSS Score

4.10%

88.5th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:22.04:LTS	bouncycastle	0, 1.68-5, 1.68-4
Ubuntu:20.04:LTS	bouncycastle	0, 1.61-1
Ubuntu:16.04:LTS	bouncycastle	0, 1.49+dfsg-3ubuntu1, 1.51-4ubuntu1
Ubuntu:24.04:LTS	bouncycastle	0, 1.77-1, 1.72-2
Ubuntu:25.10	bouncycastle	1.80-3, 0, 1.77-1
Ubuntu:18.04:LTS	bouncycastle	1.58-1, 1.59-1, 0

Timeline

Dec 18, 2020 CVE Published
Apr 14, 2021 EPSS Score
May 29, 2021 EPSS Score
Jun 22, 2021 EPSS Score
Aug 23, 2021 EPSS Score
Oct 24, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Jun 29, 2022 EPSS Score
Nov 1, 2022 EPSS Score
Jan 2, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2020-28052 third-party-advisory
https://github.com/bcgit/bc-java/wiki/CVE-2020-28052 third-party-advisory
https://www.synopsys.com/blogs/software-security/cve-2020-28052-bouncy-castle/ third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2020-28052 third-party-advisory

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