Bug 2225201 (CVE-2023-3609)

Summary:	CVE-2023-3609 kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails
Product:	[Other] Security Response	Reporter:	Alex <allarkin>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	acaringi, allarkin, aolandt, bhu, chwhite, crwood, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jpoimboe, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, kpatch-maint-bot, ldoskova, lgoncalv, lzampier, mvanderw, nmurray, ptalbert, qzhao, rhandlin, rkeshri, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, tglozar, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote, ymankad
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Kernel 6.4-rc7	Doc Type:	If docs needed, set a value
Doc Text:	A double-free flaw was found in u32_set_parms in net/sched/cls_u32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2219411, 2225202, 2225203, 2225483, 2225484, 2225485, 2225486, 2225487, 2225488, 2225489, 2225490, 2225491, 2225492, 2225493, 2225494, 2225495, 2225496, 2225497, 2225498, 2225500, 2225501, 2225502, 2225503, 2225505, 2225506, 2225507, 2225508, 2225509, 2225510, 2226868, 2226869, 2226870, 2226872, 2226873
Bug Blocks:	2225185

Description Alex 2023-07-24 14:28:28 UTC

A flaw in the Linux Kernel found. A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc

Comment 13 errata-xmlrpc 2023-10-10 10:24:38 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2023:5574 https://access.redhat.com/errata/RHSA-2023:5574

Comment 14 errata-xmlrpc 2023-10-10 15:50:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2023:5621 https://access.redhat.com/errata/RHSA-2023:5621

Comment 15 errata-xmlrpc 2023-10-10 16:14:15 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2023:5622 https://access.redhat.com/errata/RHSA-2023:5622

Comment 16 errata-xmlrpc 2023-10-10 16:24:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2023:5628 https://access.redhat.com/errata/RHSA-2023:5628

Comment 18 errata-xmlrpc 2023-10-17 09:24:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

Via RHSA-2023:5775 https://access.redhat.com/errata/RHSA-2023:5775

Comment 19 errata-xmlrpc 2023-10-17 15:06:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2023:5794 https://access.redhat.com/errata/RHSA-2023:5794

Comment 20 errata-xmlrpc 2023-11-07 08:20:41 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 21 errata-xmlrpc 2023-11-08 08:39:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:6799 https://access.redhat.com/errata/RHSA-2023:6799

Comment 22 errata-xmlrpc 2023-11-08 10:57:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:6813 https://access.redhat.com/errata/RHSA-2023:6813

Comment 23 errata-xmlrpc 2023-11-14 15:15:54 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 24 errata-xmlrpc 2023-11-14 15:21:16 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 25 errata-xmlrpc 2023-11-15 19:39:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Advanced Update Support

Via RHSA-2023:7294 https://access.redhat.com/errata/RHSA-2023:7294

Comment 26 errata-xmlrpc 2023-11-21 10:25:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2023:7379 https://access.redhat.com/errata/RHSA-2023:7379

Comment 27 errata-xmlrpc 2023-11-21 11:24:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2023:7370 https://access.redhat.com/errata/RHSA-2023:7370

Comment 28 errata-xmlrpc 2023-11-21 11:42:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2023:7398 https://access.redhat.com/errata/RHSA-2023:7398

Comment 29 errata-xmlrpc 2023-11-21 11:42:31 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2023:7410 https://access.redhat.com/errata/RHSA-2023:7410

Comment 30 errata-xmlrpc 2023-11-21 14:43:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

Via RHSA-2023:7417 https://access.redhat.com/errata/RHSA-2023:7417

Comment 31 errata-xmlrpc 2023-11-21 14:48:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2023:7418 https://access.redhat.com/errata/RHSA-2023:7418

Comment 32 errata-xmlrpc 2023-11-21 15:26:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Via RHSA-2023:7431 https://access.redhat.com/errata/RHSA-2023:7431

Comment 33 errata-xmlrpc 2023-11-21 15:31:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support
  Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.2 Telecommunications Update Service

Via RHSA-2023:7434 https://access.redhat.com/errata/RHSA-2023:7434

Comment 34 errata-xmlrpc 2023-11-28 15:35:39 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2023:7539 https://access.redhat.com/errata/RHSA-2023:7539

Comment 35 errata-xmlrpc 2023-11-28 18:49:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2023:7558 https://access.redhat.com/errata/RHSA-2023:7558

Comment 37 errata-xmlrpc 2024-02-27 06:36:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.7 Advanced Update Support

Via RHSA-2024:0999 https://access.redhat.com/errata/RHSA-2024:0999

Comment 38 errata-xmlrpc 2024-03-12 00:43:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1250 https://access.redhat.com/errata/RHSA-2024:1250

Comment 39 errata-xmlrpc 2024-03-12 01:00:53 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1253 https://access.redhat.com/errata/RHSA-2024:1253

Comment 40 errata-xmlrpc 2024-03-13 09:08:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1306 https://access.redhat.com/errata/RHSA-2024:1306