CVE-2023-6240
Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
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.
Se encontró una fuga de canal lateral de vulnerabilidad de Marvin en la operación de descifrado RSA en el kernel de Linux. Este problema puede permitir que un atacante de red descifre textos cifrados o falsifique firmas, limitando los servicios que utilizan esa clave privada.
An update for kernel is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include null pointer and use-after-free vulnerabilities.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-11-21 CVE Reserved
- 2024-02-04 CVE Published
- 2024-11-15 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-203: Observable Discrepancy
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20240628-0002 |
|
|
| https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself | Technical Description |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2024:1881 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:1882 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:2758 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:3414 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:3421 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:3618 | 2024-06-28 | |
| https://access.redhat.com/errata/RHSA-2024:3627 | 2024-06-28 | |
| https://access.redhat.com/security/cve/CVE-2023-6240 | 2024-06-05 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2250843 | 2024-06-05 | |
| https://people.redhat.com/~hkario/marvin | 2024-06-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | - | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 9.0 Search vendor "Redhat" for product "Enterprise Linux" and version "9.0" | - |
Affected
| ||||||