Bug 1551051 (CVE-2018-5803)

Summary:	CVE-2018-5803 kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	airlied, ajax, aquini, bhu, blc, bskeggs, dhoward, ewk, fhrbata, hannsj_uhl, hdegoede, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jarodwilson, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, matt, mchehab, mcressma, mjg59, mlangsdo, nmurray, plougher, pmatouse, rt-maint, rvrbovsk, sbrivio, skozina, slawomir, steved, 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:	An error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP, packet length can be exploited by a malicious local user to cause a kernel crash and a DoS.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:42:10 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:	1551052, 1551053, 1551905, 1551906, 1551907, 1551908, 1551909, 1552009, 1740299, 1740300, 1740302, 1740303
Bug Blocks:	1551057

Description Adam Mariš 2018-03-02 16:17:10 UTC

An error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited by a malicious local user to cause a kernel crash and a DoS.

References:

https://packetstormsecurity.com/files/146620/secunia-sctpmakechunkdos.txt

https://marc.info/?t=151818093200004&r=1&w=2

https://marc.info/?t=151818682600001&r=1&w=2

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c

Comment 1 Adam Mariš 2018-03-02 16:18:32 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1551053]

Comment 10 errata-xmlrpc 2018-06-19 04:48:21 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2018:1854

Comment 11 errata-xmlrpc 2018-10-30 07:31:26 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3083

Comment 12 errata-xmlrpc 2018-10-30 07:37:35 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2018:3096

Comment 13 errata-xmlrpc 2018-10-30 08:58:17 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 14 errata-xmlrpc 2019-03-26 07:45:13 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2019:0641 https://access.redhat.com/errata/RHSA-2019:0641