Bug 2151959 (CVE-2022-45934)

Summary:	CVE-2022-45934 kernel: integer overflow in l2cap_config_req() in net/bluetooth/l2cap_core.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, bhu, chwhite, crwood, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, lgoncalv, lleshchi, lzampier, nmurray, ptalbert, qzhao, rogbas, rvrbovsk, scweaver, tyberry, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An integer overflow flaw was found in the Linux kernel’s L2CAP bluetooth functionality in how a user generates malicious L2CAP_CONF_REQ packets. This flaw allows a local or bluetooth connection user to crash the system.	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:	2152857, 2152858, 2151960, 2152859, 2152860
Bug Blocks:	2150891

Description Guilherme de Almeida Suckevicz 2022-12-08 17:48:52 UTC

An issue was discovered in the Linux kernel through 6.0.10. l2cap_config_req in net/bluetooth/l2cap_core.c has an integer wraparound via L2CAP_CONF_REQ packets.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=ae4569813a6e931258db627cdfe50dfb4f917d5d

Comment 1 Guilherme de Almeida Suckevicz 2022-12-08 17:49:17 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2151960]

Comment 9 errata-xmlrpc 2024-04-30 10:08:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394