Bug 2147356 (CVE-2022-42895) - CVE-2022-42895 kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c
Summary: CVE-2022-42895 kernel: Information leak in l2cap_parse_conf_req in net/blueto...
Keywords:
Status: NEW
Alias: CVE-2022-42895
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: 2147358 2148406 2148407 2148408 2148409
Blocks: 2142956
TreeView+ depends on / blocked
 
Reported: 2022-11-23 19:19 UTC by Pedro Sampaio
Modified: 2024-10-12 08:28 UTC (History)
34 users (show)

Fixed In Version: kernel 6.1-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-2023:6835 0 None None None 2023-11-09 07:10:40 UTC
Red Hat Product Errata RHBA-2023:7268 0 None None None 2023-11-15 18:25:09 UTC
Red Hat Product Errata RHBA-2023:7328 0 None None None 2023-11-16 11:38:41 UTC
Red Hat Product Errata RHBA-2023:7338 0 None None None 2023-11-16 18:04:00 UTC
Red Hat Product Errata RHBA-2023:7343 0 None None None 2023-11-20 01:58:22 UTC
Red Hat Product Errata RHBA-2023:7346 0 None None None 2023-11-20 09:25:29 UTC
Red Hat Product Errata RHSA-2023:6583 0 None None None 2023-11-07 08:20:01 UTC
Red Hat Product Errata RHSA-2023:6901 0 None None None 2023-11-14 15:14:41 UTC
Red Hat Product Errata RHSA-2023:7077 0 None None None 2023-11-14 15:20:20 UTC
Red Hat Product Errata RHSA-2024:1877 0 None None None 2024-04-18 02:29:37 UTC
Red Hat Product Errata RHSA-2024:2621 0 None None None 2024-04-30 16:59:20 UTC

Description Pedro Sampaio 2022-11-23 19:19:36 UTC 
There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely.

References:

https://kernel.dance/#b1a2cd50c0357f243b7435a732b4e62ba3157a2e
https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e
Comment 1 Pedro Sampaio 2022-11-23 19:20:16 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2147358]
Comment 5 Justin M. Forbes 2022-11-30 20:24:40 UTC 
This was fixed for Fedora with the 6.0.8 stable kernel updates.
Comment 12 errata-xmlrpc 2023-11-07 08:19:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2023:6583
Comment 13 errata-xmlrpc 2023-11-14 15:14:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:6901 https://access.redhat.com/errata/RHSA-2023:6901
Comment 14 errata-xmlrpc 2023-11-14 15:20:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:7077 https://access.redhat.com/errata/RHSA-2023:7077
Comment 18 errata-xmlrpc 2024-04-18 02:29:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:1877 https://access.redhat.com/errata/RHSA-2024:1877
Comment 20 errata-xmlrpc 2024-04-30 16:59:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:2621 https://access.redhat.com/errata/RHSA-2024:2621
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