Bug 2239847 (CVE-2023-42755, ZDI-CAN-18387) - CVE-2023-42755 kernel: rsvp: out-of-bounds read in rsvp_classify()
Summary: CVE-2023-42755 kernel: rsvp: out-of-bounds read in rsvp_classify()
Keywords:
Status: NEW
Alias: CVE-2023-42755, ZDI-CAN-18387
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
: CVE-2023-39195 2258363 2258364 (view as bug list)
Depends On: 2227310 2227311
Blocks: 2238729 2258363
TreeView+ depends on / blocked
 
Reported: 2023-09-20 13:54 UTC by Patrick Del Bello
Modified: 2024-10-12 08:28 UTC (History)
41 users (show)

Fixed In Version: kernel 6.3-rc1
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:2950 0 None None None 2024-05-22 09:14:50 UTC
Red Hat Product Errata RHSA-2024:3138 0 None None None 2024-05-22 09:52:15 UTC

Description Patrick Del Bello 2023-09-20 13:54:37 UTC 
A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer access.
Comment 5 Mauro Matteo Cascella 2023-09-28 16:02:58 UTC 
The rsvp classifier has been retired upstream:
https://github.com/torvalds/linux/commit/265b4da82dbf5df04bee5a5d46b7474b1aaf326a
Comment 6 Mauro Matteo Cascella 2023-09-28 16:11:50 UTC 
*** Bug 2226790 has been marked as a duplicate of this bug. ***
Comment 11 Alex 2024-02-11 09:38:54 UTC 
*** Bug 2258363 has been marked as a duplicate of this bug. ***
Comment 12 Alex 2024-02-11 09:41:42 UTC 
*** Bug 2258364 has been marked as a duplicate of this bug. ***
Comment 13 errata-xmlrpc 2024-05-22 09:14:47 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 09:52:11 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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