CVE-2024-2236

Libgcrypt: vulnerable to marvin attack

Description

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 10
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:9404 vendor advisory
https://access.redhat.com/errata/RHSA-2025:3530 vendor advisory
https://access.redhat.com/errata/RHSA-2025:3534 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-2236 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2245218 issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2268268

Frequently Asked Questions

What is the severity of CVE-2024-2236?
CVE-2024-2236 has been scored as a medium severity vulnerability.
How to fix CVE-2024-2236?
To fix CVE-2024-2236, 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-2024-2236 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-2236 is being actively exploited. 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-2024-2236?
CVE-2024-2236 affects Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support, Red Hat Red Hat Enterprise Linux 10, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8.
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