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THREATINT
PUBLISHED

CVE-2023-6240

Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation

Reserved:2023-11-21
Published:2024-02-04
Updated:2024-05-21

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.



MEDIUM: 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Problem types

Observable Discrepancy

Product status

Default status
affected

0:5.14.0-427.16.1.el9_4 before *
unaffected

Default status
affected

0:5.14.0-427.16.1.el9_4 before *
unaffected

Default status
affected

0:5.14.0-284.62.1.el9_2 before *
unaffected

Default status
affected

0:5.14.0-284.62.1.rt14.347.el9_2 before *
unaffected

Default status
unknown

Default status
unknown

Default status
unknown

Default status
affected

Default status
affected

Default status
affected

Timeline

2023-11-21:Reported to Red Hat.
2023-09-25:Made public.

References

https://access.redhat.com/errata/RHSA-2024:1881 (RHSA-2024:1881) vendor-advisory

https://access.redhat.com/errata/RHSA-2024:1882 (RHSA-2024:1882) vendor-advisory

https://access.redhat.com/errata/RHSA-2024:2758 (RHSA-2024:2758) vendor-advisory

https://access.redhat.com/security/cve/CVE-2023-6240 vdb-entry

https://bugzilla.redhat.com/show_bug.cgi?id=2250843 (RHBZ#2250843) issue-tracking

https://people.redhat.com/~hkario/marvin/

https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/

cve.org CVE-2023-6240

nvd.nist.gov CVE-2023-6240

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