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CVE Vulnerability Details :
CVE-2023-6240
PUBLISHED
More InfoOfficial Page
Assigner-redhat
Assigner Org ID-53f830b8-0a3f-465b-8143-3b8a9948e749
View Known Exploited Vulnerability (KEV) details
Published At-04 Feb, 2024 | 14:11
Updated At-08 Nov, 2025 | 07:10
Rejected At-
▼CVE Numbering Authority (CNA)
Kernel: marvin vulnerability side-channel leakage in the rsa decryption operation

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.

Affected Products
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/a:redhat:enterprise_linux:8::realtime
  • cpe:/a:redhat:enterprise_linux:8::nfv
Default Status
affected
Versions
Unaffected
  • From 0:4.18.0-553.5.1.rt7.346.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 8
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:8::baseos
  • cpe:/a:redhat:enterprise_linux:8::crb
Default Status
affected
Versions
Unaffected
  • From 0:4.18.0-553.5.1.el8_10 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:9::baseos
  • cpe:/a:redhat:enterprise_linux:9::realtime
  • cpe:/a:redhat:enterprise_linux:9::nfv
  • cpe:/a:redhat:enterprise_linux:9::appstream
  • cpe:/a:redhat:enterprise_linux:9::crb
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-427.16.1.el9_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:9::baseos
  • cpe:/a:redhat:enterprise_linux:9::realtime
  • cpe:/a:redhat:enterprise_linux:9::nfv
  • cpe:/a:redhat:enterprise_linux:9::appstream
  • cpe:/a:redhat:enterprise_linux:9::crb
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-427.16.1.el9_4 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.0 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:rhel_eus:9.0::baseos
  • cpe:/a:redhat:rhel_eus:9.0::crb
  • cpe:/a:redhat:rhel_eus:9.0::appstream
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-70.101.1.el9_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.0 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/a:redhat:rhel_eus:9.0::realtime
  • cpe:/a:redhat:rhel_eus:9.0::nfv
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-70.101.1.rt21.173.el9_0 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.2 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/a:redhat:rhel_eus:9.2::appstream
  • cpe:/o:redhat:rhel_eus:9.2::baseos
  • cpe:/a:redhat:rhel_eus:9.2::crb
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-284.62.1.el9_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9.2 Extended Update Support
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/a:redhat:rhel_eus:9.2::nfv
  • cpe:/a:redhat:rhel_eus:9.2::realtime
Default Status
affected
Versions
Unaffected
  • From 0:5.14.0-284.62.1.rt14.347.el9_2 before * (rpm)
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 6
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:6
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 7
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:7
Default Status
unknown
Vendor
Red Hat, Inc.Red Hat
Product
Red Hat Enterprise Linux 9
Collection URL
https://access.redhat.com/downloads/content/package-browser/
Package Name
kernel-rt
CPEs
  • cpe:/o:redhat:enterprise_linux:9
Default Status
affected
Problem Types
TypeCWE IDDescription
CWECWE-203Observable Discrepancy
Type: CWE
CWE ID: CWE-203
Description: Observable Discrepancy
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Metrics Other Info
Red Hat severity rating
value:
Moderate
namespace:
https://access.redhat.com/security/updates/classification/
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Reported to Red Hat.2023-11-21 00:00:00
Made public.2023-09-25 00:00:00
Event: Reported to Red Hat.
Date: 2023-11-21 00:00:00
Event: Made public.
Date: 2023-09-25 00:00:00
Replaced By
Rejected Reason
References
HyperlinkResource
https://access.redhat.com/errata/RHSA-2024:1881
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:1882
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2758
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3414
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3421
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3618
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3627
vendor-advisory
x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-6240
vdb-entry
x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2250843
issue-tracking
x_refsource_REDHAT
https://people.redhat.com/~hkario/marvin/
N/A
https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2024:1881
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:1882
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2758
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3414
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3421
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3618
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3627
Resource:
vendor-advisory
x_refsource_REDHAT
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6240
Resource:
vdb-entry
x_refsource_REDHAT
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2250843
Resource:
issue-tracking
x_refsource_REDHAT
Hyperlink: https://people.redhat.com/~hkario/marvin/
Resource: N/A
Hyperlink: https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://access.redhat.com/errata/RHSA-2024:1881
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:1882
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:2758
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:3414
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:3421
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:3618
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/errata/RHSA-2024:3627
vendor-advisory
x_refsource_REDHAT
x_transferred
https://access.redhat.com/security/cve/CVE-2023-6240
vdb-entry
x_refsource_REDHAT
x_transferred
https://bugzilla.redhat.com/show_bug.cgi?id=2250843
issue-tracking
x_refsource_REDHAT
x_transferred
https://people.redhat.com/~hkario/marvin/
x_transferred
https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
x_transferred
https://security.netapp.com/advisory/ntap-20240628-0002/
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:1881
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:1882
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:2758
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3414
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3421
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3618
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/errata/RHSA-2024:3627
Resource:
vendor-advisory
x_refsource_REDHAT
x_transferred
Hyperlink: https://access.redhat.com/security/cve/CVE-2023-6240
Resource:
vdb-entry
x_refsource_REDHAT
x_transferred
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2250843
Resource:
issue-tracking
x_refsource_REDHAT
x_transferred
Hyperlink: https://people.redhat.com/~hkario/marvin/
Resource:
x_transferred
Hyperlink: https://securitypitfalls.wordpress.com/2023/10/16/experiment-with-side-channel-attacks-yourself/
Resource:
x_transferred
Hyperlink: https://security.netapp.com/advisory/ntap-20240628-0002/
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found