Bug 2250843 (CVE-2023-6240)

Summary: CVE-2023-6240 kernel: Marvin vulnerability side-channel leakage in the RSA decryption operation
Product: [Other] Security Response Reporter: Rohit Keshri <rkeshri>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acaringi, ajmitchell, allarkin, anprice, aquini, bhu, chwhite, dbohanno, debarbos, dfreiber, drow, dvlasenk, ezulian, hkrzesin, ikent, jarod, jburrell, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kyoshida, ldoskova, lgoncalv, mleitner, mmilgram, mstowell, nmurray, ptalbert, rogbas, rparrazo, rrobaina, rvrbovsk, scweaver, security-response-team, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
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.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2262644    
Bug Blocks: 2250781    

Description Rohit Keshri 2023-11-21 12:31:22 UTC
A flaw found that is Marvin Attack vulnerability side-channel leakage in the RSA decryption operation.

References:
https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
https://people.redhat.com/~hkario/marvin/

Comment 5 Alex 2024-02-04 13:47:10 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2262644]

Comment 7 errata-xmlrpc 2024-04-18 01:47:02 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:1882 https://access.redhat.com/errata/RHSA-2024:1882

Comment 8 errata-xmlrpc 2024-04-18 02:28:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:1881 https://access.redhat.com/errata/RHSA-2024:1881

Comment 9 errata-xmlrpc 2024-05-08 00:47:05 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2758 https://access.redhat.com/errata/RHSA-2024:2758

Comment 10 errata-xmlrpc 2024-05-28 14:05:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:3414 https://access.redhat.com/errata/RHSA-2024:3414

Comment 11 errata-xmlrpc 2024-05-28 14:07:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:3421 https://access.redhat.com/errata/RHSA-2024:3421

Comment 12 errata-xmlrpc 2024-06-05 00:29:29 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3618 https://access.redhat.com/errata/RHSA-2024:3618

Comment 13 errata-xmlrpc 2024-06-05 10:00:53 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3627 https://access.redhat.com/errata/RHSA-2024:3627

Comment 15 barkerxavierr 2024-12-05 03:47:17 UTC Comment hidden (spam)
Comment 18 AimGrip 2025-09-07 08:14:22 UTC Comment hidden (spam)
Comment 19 AimGrip 2025-09-07 08:15:11 UTC Comment hidden (spam)
Comment 20 AimGrip 2025-09-15 13:07:11 UTC Comment hidden (spam)