Bug 2188470 (CVE-2023-1829)

Summary:	CVE-2023-1829 kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	acaringi, allarkin, bhu, chwhite, dbohanno, ddepaula, debarbos, derrick.roach.ctr, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jpoimboe, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, kpatch-maint, ldoskova, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rhandlin, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, swood, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The tcindex_delete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to privilege escalation.	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:	2192294, 2192295, 2192296, 2192300, 2192302, 2192303, 2192304, 2192305, 2192308, 2192499, 2192500, 2192501, 2192502, 2192293, 2192297, 2192298, 2192299, 2192301, 2192306, 2192307, 2192309, 2192310, 2192311, 2192312, 2192496, 2192497, 2192498, 2192503, 2192504, 2192505
Bug Blocks:	2188471

Description Pedro Sampaio 2023-04-20 20:55:38 UTC

A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.

References:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c710f75256bb3cf05ac7b1672c82b92c43f3d28
https://kernel.dance/#8c710f75256bb3cf05ac7b1672c82b92c43f3d28

Comment 29 errata-xmlrpc 2023-08-08 07:22:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:4516 https://access.redhat.com/errata/RHSA-2023:4516

Comment 30 errata-xmlrpc 2023-08-08 07:22:28 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:4515 https://access.redhat.com/errata/RHSA-2023:4515

Comment 31 errata-xmlrpc 2023-08-08 07:54:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:4541 https://access.redhat.com/errata/RHSA-2023:4541

Comment 32 errata-xmlrpc 2023-08-08 08:19:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:4517 https://access.redhat.com/errata/RHSA-2023:4517

Comment 33 errata-xmlrpc 2023-08-08 08:19:59 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:4531 https://access.redhat.com/errata/RHSA-2023:4531