Information Exposure Affecting kernel-core package, versions <0:5.14.0-70.101.1.el9_0
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-7153213
- published 29 May 2024
- disclosed 25 Sep 2023
Introduced: 25 Sep 2023
CVE-2023-6240 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-70.101.1.el9_0 or higher.
This issue was patched in RHSA-2024:3421.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2023-6240
- https://bugzilla.redhat.com/show_bug.cgi?id=2250843
- https://people.redhat.com/~hkario/marvin/
- https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
- https://access.redhat.com/errata/RHSA-2024:3421
- https://security.netapp.com/advisory/ntap-20240628-0002/