CVE-2024-2236 (CVSS 5.9)

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.

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CVSS v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-385 CWE-385

References

Other References

https://access.redhat.com/errata/RHSA-2024:9404 https://access.redhat.com/errata/RHSA-2025:3530 https://access.redhat.com/errata/RHSA-2025:3534 https://access.redhat.com/security/cve/CVE-2024-2236 https://bugzilla.redhat.com/show_bug.cgi?id=2245218 https://access.redhat.com/security/cve/CVE-2024-2236 https://bugzilla.redhat.com/show_bug.cgi?id=2245218 https://bugzilla.redhat.com/show_bug.cgi?id=2268268

Frequently Asked Questions

What is CVE-2024-2236? +

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. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-2236? +

CVE-2024-2236 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2024-2236? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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