CVE-2023-5992

Public Exploit
Opensc: side-channel leaks while stripping encryption pkcs#1 padding

Description

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.

Category

5.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory github.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 7
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:0966 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2024:0967 third party advisory vendor advisory
https://access.redhat.com/security/cve/CVE-2023-5992 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2248685 issue tracking
https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992 vendor advisory
https://www.usenix.org/system/files/usenixsecurity24-shagam.pdf exploit technical description
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OWIZ5ZLO5ECYPLSTESCF7I7PQO5X6ZSU/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJI2FWLY24EOPALQ43YPQEZMEP3APPPI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UECKC7X4IM4YZQ5KRQMNBNKNOXLZC7RZ/

Frequently Asked Questions

What is the severity of CVE-2023-5992?
CVE-2023-5992 has been scored as a medium severity vulnerability.
How to fix CVE-2023-5992?
To fix CVE-2023-5992, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-5992 being actively exploited in the wild?
It is possible that CVE-2023-5992 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5992?
CVE-2023-5992 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 7.
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