Bug 1613550 (CVE-2018-15120)

Summary:	CVE-2018-15120 pango: application crash triggered by unicode chars in pango-emoji.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ahardin, alexl, bleanhar, ccoleman, dedgar, fonts-bugs, i18n-bugs, jgoulding, john.j5live, jokerman, mchappel, mclasen, pwu, rhughes, rstrode, sandmann, security-response-team, tagoh
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	pango 1.42.4	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-09-13 11:55:47 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:	1619831, 1619832, 1624192
Bug Blocks:	1613551

Description Laura Pardo 2018-08-07 20:24:53 UTC

A flaw was found in Pango since versions 1.40.8 up to newer. Typing certain invalid Emoji sequences into a GTK+ application can trigger a Reachable  Assertion resulting in an application crash.

Comment 1 Stefan Cornelius 2018-08-08 12:49:18 UTC

Statement:

This issue did not affect the versions of pango as shipped with Red Hat Enterprise Linux 5, 6, and 7 as they did not include support for emojis.

Comment 2 Laura Pardo 2018-08-21 20:32:24 UTC

References:
https://mail.gnome.org/archives/distributor-list/2018-August/msg00001.html

Upstream patch:
https://gitlab.gnome.org/GNOME/pango/commit/71aaeaf020340412b8d012fe23a556c0420eda5f

Comment 3 Laura Pardo 2018-08-21 20:33:10 UTC

Created pango tracking bugs for this issue:

Affects: fedora-all [bug 1619831]

Comment 12 Laura Pardo 2018-09-17 14:38:51 UTC

Acknowledgments:

Name: Jeffery M
Upstream: GNOME Project