Bug 1623067 (CVE-2018-9363)

Summary:	CVE-2018-9363 kernel: Buffer overflow in hidp_process_report
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, airlied, aquini, bhu, bskeggs, dbaker, dhoward, ewk, fhrbata, hdegoede, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jarodwilson, jforbes, jglisse, jkacur, john.j5live, jokerman, jonathan, josef, jross, jstancek, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, matt, mchehab, mcressma, mjg59, nmurray, plougher, rt-maint, rvrbovsk, skozina, steved, sthangav, trankin, vdronov, williams, yozone
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 buffer overflow due to a singed-unsigned comparsion was found in hidp_process_report() in the net/bluetooth/hidp/core.c in the Linux kernel. The buffer length is an unsigned int but gets cast to a signed int which in certain conditions can lead to a system panic and a denial-of-service.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:36:59 UTC	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:	1623073, 1623074, 1624391, 1624392, 1624393, 1624394, 1772222, 1772223, 1772224, 1772225
Bug Blocks:	1623079

Description Andrej Nemec 2018-08-28 12:38:26 UTC

A buffer overflow due to a singed-unsigned comparsion was found in hidp_process_report() in the net/bluetooth/hidp/core.c in the Linux kernel. The buffer length is an unsigned int but gets cast to a signed int which in certain conditions can lead to a system panic and a denial-of-service.

Introduced by:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4b1b5877b514b276f0f31efe02388a9c2836728

Fixed by:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7992c18810e568b95c869b227137a2215702a805

Comment 1 Andrej Nemec 2018-08-28 12:40:40 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1623074]

Comment 3 Justin M. Forbes 2018-08-28 20:22:31 UTC

This was fixed for Fedora with the 4.17.16 stable kernel updates.

Comment 7 errata-xmlrpc 2018-10-30 09:04:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:2948

Comment 8 errata-xmlrpc 2019-08-06 12:04:18 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2029 https://access.redhat.com/errata/RHSA-2019:2029

Comment 9 errata-xmlrpc 2019-08-06 12:06:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2043 https://access.redhat.com/errata/RHSA-2019:2043