CVE-2023-33201

Publication date 5 July 2023

Last updated 18 March 2026

Ubuntu priority

Cvss 3 Severity Score

Description

Bouncy Castle For Java before 1.74 is affected by an LDAP injection vulnerability. The vulnerability only affects applications that use an LDAP CertStore from Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the certificate's Subject Name into an LDAP search filter without any escaping, which leads to an LDAP injection vulnerability.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bouncycastle	25.10 questing	Not affected
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 1.68-5ubuntu0.1~esm1
	20.04 LTS focal	Fixed 1.61-1ubuntu0.1~esm1
	18.04 LTS bionic	Fixed 1.59-1ubuntu0.1~esm1
	16.04 LTS xenial	Fixed 1.51-4ubuntu1+esm1
	14.04 LTS trusty	Ignored end of standard support

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
bouncycastle	Upstream: e8c409a

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-8108-1
Bouncy Castle vulnerabilities
18 March 2026