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Date:      Thu, 23 Jul 2020 18:34:50 +0000 (UTC)
From:      Jochen Neumeister <joneum@FreeBSD.org>
To:        ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org
Subject:   svn commit: r542951 - in head/x11-toolkits/pango: . files
Message-ID:  <202007231834.06NIYopt071450@repo.freebsd.org>

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Author: joneum
Date: Thu Jul 23 18:34:50 2020
New Revision: 542951
URL: https://svnweb.freebsd.org/changeset/ports/542951

Log:
  SECURITY UPDATE: Buffer overflow
  
  Gnome Pango 1.42 and later is affected by: Buffer Overflow. The impact is: The heap based buffer overflow can be used to get code execution. The component is: function name: pango_log2vis_get_embedding_levels, assignment of nchars and the loop condition. The attack vector is: Bug can be used when application pass invalid utf-8 strings to functions like pango_itemize.
  
  PR:		239563
  Reported by:	Miyashita Touka <imagin8r@protonmail.com>
  Approved by:	gnome (maintainer timeout)
  MFH:		2020Q3
  Security:	456375e1-cd09-11ea-9172-4c72b94353b5
  Sponsored by:	Netzkommune GmbH

Added:
  head/x11-toolkits/pango/files/CVE-20191010238   (contents, props changed)
Modified:
  head/x11-toolkits/pango/Makefile

Modified: head/x11-toolkits/pango/Makefile
==============================================================================
--- head/x11-toolkits/pango/Makefile	Thu Jul 23 18:34:47 2020	(r542950)
+++ head/x11-toolkits/pango/Makefile	Thu Jul 23 18:34:50 2020	(r542951)
@@ -3,7 +3,7 @@
 
 PORTNAME=	pango
 PORTVERSION=	1.42.4
-PORTREVISION=	3
+PORTREVISION=	4
 CATEGORIES=	x11-toolkits
 MASTER_SITES=	GNOME
 DIST_SUBDIR=	gnome2

Added: head/x11-toolkits/pango/files/CVE-20191010238
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/x11-toolkits/pango/files/CVE-20191010238	Thu Jul 23 18:34:50 2020	(r542951)
@@ -0,0 +1,16 @@
+--- ../pango/pango-bidi-type.c.orig	2020-07-23 19:10:14.338937000 +0200
++++ ../pango/pango-bidi-type.c	2020-07-23 19:12:15.511836000 +0200
+@@ -179,8 +179,11 @@ pango_log2vis_get_embedding_levels (const gchar    *te
+   for (i = 0, p = text; p < text + length; p = g_utf8_next_char(p), i++)
+     {
+       gunichar ch = g_utf8_get_char (p);
+-      FriBidiCharType char_type;
+-      char_type = fribidi_get_bidi_type (ch);
++	  FriBidiCharType char_type = fribidi_get_bidi_type (ch);
++		  
++	  	if (i == n_chars)
++			break;
++
+       bidi_types[i] = char_type;
+       ored_types |= char_type;
+       if (FRIBIDI_IS_STRONG (char_type))



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