Medium severity · published Feb 4, 2024
CVE-2023-6240
Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation
6.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
All versions, or not specified · source: NVD
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9.2 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
EL
Enterprise Linux · Redhat
7.0; 8.0; 9.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6240
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6240
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:1881
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:1882
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:2758
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:3414
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:3421
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:3618
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