Bug 2168332 (CVE-2023-23455) - CVE-2023-23455 Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion
Summary: CVE-2023-23455 Kernel: denial of service in atm_tc_enqueue in net/sched/sch_a...
Keywords:
Status: NEW
Alias: CVE-2023-23455
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: 2168334 2168335 2168336 2168337
Blocks: 2160440
TreeView+ depends on / blocked
 
Reported: 2023-02-08 18:20 UTC by Rohit Keshri
Modified: 2024-02-08 16:51 UTC (History)
40 users (show)

Fixed In Version: kernel 6.2-rc3
Doc Type: If docs needed, set a value
Doc Text:
A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TC_ACT_SHOT condition rather than valid classification results.
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2023:7268 0 None None None 2023-11-15 18:25:13 UTC
Red Hat Product Errata RHBA-2023:7328 0 None None None 2023-11-16 11:38:45 UTC
Red Hat Product Errata RHBA-2023:7338 0 None None None 2023-11-16 18:04:05 UTC
Red Hat Product Errata RHBA-2023:7343 0 None None None 2023-11-20 01:58:31 UTC
Red Hat Product Errata RHBA-2023:7346 0 None None None 2023-11-20 09:25:34 UTC
Red Hat Product Errata RHSA-2023:6901 0 None None None 2023-11-14 15:14:52 UTC
Red Hat Product Errata RHSA-2023:7077 0 None None None 2023-11-14 15:20:29 UTC
Red Hat Product Errata RHSA-2024:0575 0 None None None 2024-01-30 13:21:08 UTC
Red Hat Product Errata RHSA-2024:0724 0 None None None 2024-02-07 16:29:53 UTC

Description Rohit Keshri 2023-02-08 18:20:10 UTC 
A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. In this flaw a local attacker may cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2965c7be0522eaa18808684b7b82b248515511b
Comment 12 errata-xmlrpc 2023-11-14 15:14:49 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 13 errata-xmlrpc 2023-11-14 15:20:25 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 16 errata-xmlrpc 2024-01-30 13:21:05 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:0575 https://access.redhat.com/errata/RHSA-2024:0575
Comment 17 errata-xmlrpc 2024-02-07 16:29:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724
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