Bug 2393533 (CVE-2025-39702) - CVE-2025-39702 kernel: ipv6: sr: Fix MAC comparison to be constant-time
Summary: CVE-2025-39702 kernel: ipv6: sr: Fix MAC comparison to be constant-time
Keywords:
Status: NEW
Alias: CVE-2025-39702
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-05 18:04 UTC by OSIDB Bzimport
Modified: 2025-11-25 18:13 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:19409 0 None None None 2025-11-03 02:27:12 UTC
Red Hat Product Errata RHSA-2025:19469 0 None None None 2025-11-03 11:36:01 UTC
Red Hat Product Errata RHSA-2025:21091 0 None None None 2025-11-12 08:08:44 UTC
Red Hat Product Errata RHSA-2025:21112 0 None None None 2025-11-12 11:25:14 UTC
Red Hat Product Errata RHSA-2025:21118 0 None None None 2025-11-12 12:22:11 UTC
Red Hat Product Errata RHSA-2025:21136 0 None None None 2025-11-12 15:05:10 UTC
Red Hat Product Errata RHSA-2025:21760 0 None None None 2025-11-19 12:27:24 UTC
Red Hat Product Errata RHSA-2025:22095 0 None None None 2025-11-25 17:16:04 UTC
Red Hat Product Errata RHSA-2025:22124 0 None None None 2025-11-25 18:13:49 UTC

Description OSIDB Bzimport 2025-09-05 18:04:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv6: sr: Fix MAC comparison to be constant-time

To prevent timing attacks, MACs need to be compared in constant time.
Use the appropriate helper function for this.
Comment 1 Keith Grant 2025-09-05 19:56:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025090548-CVE-2025-39702-cb30@gregkh/T
Comment 3 errata-xmlrpc 2025-11-03 02:27:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:19409 https://access.redhat.com/errata/RHSA-2025:19409
Comment 4 errata-xmlrpc 2025-11-03 11:36:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:19469 https://access.redhat.com/errata/RHSA-2025:19469
Comment 6 errata-xmlrpc 2025-11-12 08:08:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:21091 https://access.redhat.com/errata/RHSA-2025:21091
Comment 7 errata-xmlrpc 2025-11-12 11:25:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:21112 https://access.redhat.com/errata/RHSA-2025:21112
Comment 8 errata-xmlrpc 2025-11-12 12:22:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:21118 https://access.redhat.com/errata/RHSA-2025:21118
Comment 9 errata-xmlrpc 2025-11-12 15:05:09 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:21136 https://access.redhat.com/errata/RHSA-2025:21136
Comment 10 errata-xmlrpc 2025-11-19 12:27:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:21760 https://access.redhat.com/errata/RHSA-2025:21760
Comment 11 errata-xmlrpc 2025-11-25 17:16:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:22095 https://access.redhat.com/errata/RHSA-2025:22095
Comment 12 errata-xmlrpc 2025-11-25 18:13:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2025:22124 https://access.redhat.com/errata/RHSA-2025:22124
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