medium
6.5
CWE
203 327
Advisory Published
CVE Published
Updated

CVE-2023-6240: Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation

First published: Tue Nov 21 2023(Updated: )

A flaw found that is Marvin Attack vulnerability side-channel leakage in the RSA decryption operation. References: <a href="https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/">https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/</a> <a href="https://people.redhat.com/~hkario/marvin/">https://people.redhat.com/~hkario/marvin/</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Kernel
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-6240?

    CVE-2023-6240 has been classified with a medium severity level due to its potential to leak sensitive information through side-channel attacks.

  • How do I fix CVE-2023-6240?

    To mitigate CVE-2023-6240, it is advised to apply the latest security updates for the Linux kernel or Red Hat Enterprise Linux as suggested in the security advisories.

  • What systems are affected by CVE-2023-6240?

    CVE-2023-6240 affects multiple versions of the Linux kernel and Red Hat Enterprise Linux 7.0, 8.0, and 9.0.

  • What type of vulnerability is CVE-2023-6240?

    CVE-2023-6240 is a side-channel leakage vulnerability associated with the RSA decryption operation.

  • Can CVE-2023-6240 be exploited remotely?

    While exploitation of CVE-2023-6240 may require local access, side-channel attacks could potentially lead to remote information leakage.

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