Bug 1787040 (CVE-2019-19746)

Summary:	CVE-2019-19746 transfig: integer overflow leads to out-of-bounds write in make_arrow in arrow.c
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	databases-maint, hhorak, kasal, mschorm, odubaj, panovotn, tomm.momi
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:	2021-10-25 22:15:16 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:	1787041, 1787042, 1795756, 1795757
Bug Blocks:	1787043

Description Guilherme de Almeida Suckevicz 2019-12-30 14:41:53 UTC

make_arrow in arrow.c in Xfig fig2dev 3.2.7b allows a segmentation fault and out-of-bounds write because of an integer overflow via a large arrow type.

Reference:
https://sourceforge.net/p/mcj/tickets/57/

Upstream commit:
https://sourceforge.net/p/mcj/fig2dev/ci/3065abc7b4f740ed6532322843531317de782a26/

Comment 1 Guilherme de Almeida Suckevicz 2019-12-30 14:43:24 UTC

Created xfig tracking bugs for this issue:

Affects: epel-7 [bug 1787042]
Affects: fedora-all [bug 1787041]

Comment 2 Hans de Goede 2020-01-15 19:48:45 UTC

fig2dev is part of transfig, not xfig.

I've update the Fedora tracking bug accordingly, EPEL does not appear to have transfig, so I believe that the EPEL tracking bug can be closed, but I'm leaving that up to you.

I'm also leaving any necessary updates to this bug (Summary?) up to you.

Comment 3 Guilherme de Almeida Suckevicz 2020-01-16 14:58:05 UTC

Thank you for this information.
I fixed the names for this bug and closed the EPEL as notabug, I will update the other bugs as well.