CVE-2023-5992

Publication date 31 January 2024

Last updated 12 March 2025

Ubuntu priority

Cvss 3 Severity Score

A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
opensc	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Fixed 0.22.0-1ubuntu2+esm1 Ubuntu Pro
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support

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Notes

bruce

Noble has been patched however there was a regression in this patch. This is fixed by https://github.com/OpenSC/OpenSC/pull/3077

Severity score breakdown

Parameter	Value
Base score	5.9 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-7346-1
OpenSC vulnerabilities
12 March 2025