Bug 1665312 (CVE-2018-20542)

Summary:	CVE-2018-20542 libxsmm: heap-based buffer-overflow at generator_spgemm_csc_reader.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dave.love, dominik
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:45:10 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:	1665313, 1665314
Bug Blocks:

Description Laura Pardo 2019-01-10 22:42:00 UTC

A flaw was found in LIBXSMM 1.10. There is a heap-based buffer-overflow at generator_spgemm_csc_reader.c (function libxsmm_sparse_csc_reader), a different vulnerability than CVE-2018-20541 (which is in a different part of the source code and is seen at a different address).


References:
https://bugzilla.redhat.com/show_bug.cgi?id=1652633
https://bugzilla.redhat.com/show_bug.cgi?id=1652635
https://github.com/hfp/libxsmm/issues/287

Upstream Patch:
https://github.com/hfp/libxsmm/commit/151481489192e6d1997f8bde52c5c425ea41741d

Comment 1 Laura Pardo 2019-01-10 22:42:15 UTC

Created libxsmm tracking bugs for this issue:

Affects: epel-7 [bug 1665314]
Affects: fedora-all [bug 1665313]

Comment 2 Product Security DevOps Team 2019-06-10 10:45:10 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.