CVE-2023-6240

MEDIUM

Linux Kernel - RSA Decryption Side-Channel Information Disclosure via Marvin Attack

Title source: llm
STIX 2.1

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.

References (12)

Core 12
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:1881
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:1882
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:2758
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3414
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3421
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3618
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2024:3627
Third Party Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2023-6240
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2250843

Scores

CVSS v3 6.5
EPSS 0.0097
EPSS Percentile 57.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-203
Status published
Products (4)
linux/linux_kernel
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
redhat/enterprise_linux 9.0
Published Feb 04, 2024
Tracked Since Feb 18, 2026