Bug 2297515 (CVE-2024-40931) - CVE-2024-40931 kernel: mptcp: ensure snd_una is properly initialized on connect
Summary: CVE-2024-40931 kernel: mptcp: ensure snd_una is properly initialized on connect
Keywords:
Status: NEW
Alias: CVE-2024-40931
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: 2024-07-12 13:34 UTC by OSIDB Bzimport
Modified: 2025-05-05 13:40 UTC (History)
4 users (show)

Fixed In Version: kernel 5.10.221, kernel 5.15.162, kernel 6.1.95, kernel 6.6.35, kernel 6.9.6, kernel 6.10-rc4
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:7043 0 None None None 2024-09-24 09:43:05 UTC
Red Hat Product Errata RHBA-2024:7198 0 None None None 2024-09-26 09:50:45 UTC
Red Hat Product Errata RHBA-2024:7236 0 None None None 2024-09-26 14:33:18 UTC
Red Hat Product Errata RHBA-2024:7637 0 None None None 2024-10-03 14:45:52 UTC
Red Hat Product Errata RHBA-2024:8227 0 None None None 2024-10-17 06:45:56 UTC
Red Hat Product Errata RHBA-2024:9014 0 None None None 2024-11-07 15:10:47 UTC
Red Hat Product Errata RHSA-2024:7000 0 None None None 2024-09-24 02:34:25 UTC
Red Hat Product Errata RHSA-2024:7001 0 None None None 2024-09-24 00:39:08 UTC
Red Hat Product Errata RHSA-2024:8617 0 None None None 2024-10-30 01:26:37 UTC
Red Hat Product Errata RHSA-2024:9497 0 None None None 2024-11-13 00:25:25 UTC
Red Hat Product Errata RHSA-2024:9498 0 None None None 2024-11-13 00:11:55 UTC

Description OSIDB Bzimport 2024-07-12 13:34:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mptcp: ensure snd_una is properly initialized on connect

This is strictly related to commit fb7a0d334894 ("mptcp: ensure snd_nxt
is properly initialized on connect"). It turns out that syzkaller can
trigger the retransmit after fallback and before processing any other
incoming packet - so that snd_una is still left uninitialized.

Address the issue explicitly initializing snd_una together with snd_nxt
and write_seq.
Comment 132 errata-xmlrpc 2024-09-24 00:39:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7001 https://access.redhat.com/errata/RHSA-2024:7001
Comment 133 errata-xmlrpc 2024-09-24 02:34:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:7000 https://access.redhat.com/errata/RHSA-2024:7000
Comment 134 errata-xmlrpc 2024-10-30 01:26:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:8617 https://access.redhat.com/errata/RHSA-2024:8617
Comment 136 errata-xmlrpc 2024-11-13 00:11:54 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:9498 https://access.redhat.com/errata/RHSA-2024:9498
Comment 137 errata-xmlrpc 2024-11-13 00:25:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:9497 https://access.redhat.com/errata/RHSA-2024:9497
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