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
7.3 High
AI Score
Confidence
Low
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:H/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
41.5%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux:linux_kernel | linux linux kernel | eq | - |
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/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
7.3 High
AI Score
Confidence
Low
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:H/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
41.5%