CVE-2023-6240
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
46.3%
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.
Affected configurations
References
access.redhat.com/errata/RHSA-2024:1881
access.redhat.com/errata/RHSA-2024:1882
access.redhat.com/errata/RHSA-2024:2758
access.redhat.com/errata/RHSA-2024:3414
access.redhat.com/errata/RHSA-2024:3421
access.redhat.com/errata/RHSA-2024:3618
access.redhat.com/errata/RHSA-2024:3627
access.redhat.com/security/cve/CVE-2023-6240
bugzilla.redhat.com/show_bug.cgi?id=2250843
people.redhat.com/~hkario/marvin/
securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
46.3%