Bug 2226787 (CVE-2023-39193, ZDI-CAN-18866) - CVE-2023-39193 kernel: netfilter: xtables sctp out-of-bounds read in match_flags()
Summary: CVE-2023-39193 kernel: netfilter: xtables sctp out-of-bounds read in match_fl...
Keywords:
Status: NEW
Alias: CVE-2023-39193, ZDI-CAN-18866
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2227298 2227299 2227300 2227301 2242879
Blocks: 2225771
TreeView+ depends on / blocked
 
Reported: 2023-07-26 14:20 UTC by Mauro Matteo Cascella
Modified: 2024-10-12 08:28 UTC (History)
51 users (show)

Fixed In Version: kernel 6.6-rc1
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:2634 0 None None None 2024-05-01 01:22:00 UTC
Red Hat Product Errata RHBA-2024:2650 0 None None None 2024-05-02 00:14:48 UTC
Red Hat Product Errata RHBA-2024:2686 0 None None None 2024-05-02 22:49:55 UTC
Red Hat Product Errata RHSA-2024:2394 0 None None None 2024-04-30 10:11:19 UTC
Red Hat Product Errata RHSA-2024:2950 0 None None None 2024-05-22 09:14:20 UTC
Red Hat Product Errata RHSA-2024:3138 0 None None None 2024-05-22 09:51:21 UTC

Description Mauro Matteo Cascella 2023-07-26 14:20:23 UTC 
An out-of-bounds read issue was found in the Linux kernel in the match_flags() function, which belongs to the Xtables SCTP protocol packet matching. This flaw requires CAP_NET_ADMIN to be exploited and could lead to information disclosure.
Comment 9 Mauro Matteo Cascella 2023-10-09 07:39:13 UTC 
ZDI security advisory:
https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/

Upstream fix:
https://github.com/torvalds/linux/commit/e99476497687ef9e850748fe6d232264f30bc8f9
Comment 10 Mauro Matteo Cascella 2023-10-09 14:43:47 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2242879]
Comment 11 Justin M. Forbes 2023-10-12 16:36:34 UTC 
This was fixed for Fedora with the 6.5.3 stable kernels
Comment 12 errata-xmlrpc 2024-04-30 10:11:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394
Comment 13 errata-xmlrpc 2024-05-22 09:14:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:2950
Comment 14 errata-xmlrpc 2024-05-22 09:51:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:3138 https://access.redhat.com/errata/RHSA-2024:3138
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