Vulnerability Description
A Marvin vulnerability side-channel leakage was found in the RSA decryption operation in the Linux Kernel. This issue may allow a network attacker to decrypt ciphertexts or forge signatures, limiting the services that use that private key.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | - |
| Redhat | Enterprise Linux | 7.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2024:1881
- https://access.redhat.com/errata/RHSA-2024:1882
- https://access.redhat.com/errata/RHSA-2024:2758
- https://access.redhat.com/errata/RHSA-2024:3414
- https://access.redhat.com/errata/RHSA-2024:3421
- https://access.redhat.com/errata/RHSA-2024:3618
- https://access.redhat.com/errata/RHSA-2024:3627
- https://access.redhat.com/security/cve/CVE-2023-6240Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2250843Issue Tracking
- https://people.redhat.com/~hkario/marvin/Third Party Advisory
- https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-aTechnical Description
- https://access.redhat.com/errata/RHSA-2024:1881
- https://access.redhat.com/errata/RHSA-2024:1882
- https://access.redhat.com/errata/RHSA-2024:2758
- https://access.redhat.com/errata/RHSA-2024:3414
FAQ
What is CVE-2023-6240?
CVE-2023-6240 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A Marvin vulnerability side-channel leakage was found in the RSA decryption operation in the Linux Kernel. This issue may allow a network attacker to decrypt ciphertexts or forge signatures, limiting ...
How severe is CVE-2023-6240?
CVE-2023-6240 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-6240?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux.