CVE-2023-6240
Published: February 5, 2024Last modified: June 18, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | HIGH |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | LOW |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.33-r0) |
| Stream | linux-lts | Vulnerable (6.1.33-r0) |
References
- https://access.redhat.com/errata/RHSA-2024:1881
- https://access.redhat.com/errata/RHSA-2024:1882
- https://access.redhat.com/errata/RHSA-2024:2758
- https://access.redhat.com/errata/RHSA-2024:3414
- https://access.redhat.com/errata/RHSA-2024:3421
- https://access.redhat.com/errata/RHSA-2024:3618
- https://access.redhat.com/errata/RHSA-2024:3627
- https://access.redhat.com/security/cve/CVE-2023-6240
- https://bugzilla.redhat.com/show_bug.cgi?id=2250843
- https://people.redhat.com/~hkario/marvin/
- https://security.netapp.com/advisory/ntap-20240628-0002/
- https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/