poppler: fix CVE-2023-34872

A vulnerability in Outline.cc for Poppler prior to 23.06.0
allows a remote attacker to cause a Denial of Service (DoS)
(crash) via a crafted PDF file in OutlineItem::open.

Reference:
https://gitlab.freedesktop.org/poppler/poppler/-/issues/1399



Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-support/poppler/poppler/CVE-2023-34872.patch

+From 591235c8b6c65a2eee88991b9ae73490fd9afdfe Sep 17 00:00:00 2001
+From: Albert Astals Cid <aacid@kde.org>
+Date: Fri, 18 Aug 2023 09:17:07 +0000
+Subject: [PATCH] OutlineItem::open: Fix crash on malformed files
+
+Fixes #1399
+
+CVE: CVE-2023-34872
+
+Upstream-Status: Backport [https://gitlab.freedesktop.org/poppler/poppler/-/commit/591235c8b6c65a2eee88991b9ae73490fd9afdfe]
+
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ poppler/Outline.cc | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+diff --git a/poppler/Outline.cc b/poppler/Outline.cc
+index cbb6cb4..4c68be9 100644
+--- a/poppler/Outline.cc
++++ b/poppler/Outline.cc
+@@ -14,7 +14,7 @@
+ // under GPL version 2 or later
+ //
+ // Copyright (C) 2005 Marco Pesenti Gritti <mpg@redhat.com>
+-// Copyright (C) 2008, 2016-2019, 2021 Albert Astals Cid <aacid@kde.org>
++// Copyright (C) 2008, 2016-2019, 2021, 2023 Albert Astals Cid <aacid@kde.org>
+ // Copyright (C) 2009 Nick Jones <nick.jones@network-box.com>
+ // Copyright (C) 2016 Jason Crain <jason@aquaticape.us>
+ // Copyright (C) 2017 Adrian Johnson <ajohnson@redneon.com>
+@@ -483,8 +483,12 @@ void OutlineItem::open()
+ {
+     if (!kids) {
+         Object itemDict = xref->fetch(ref);
+-        const Object &firstRef = itemDict.dictLookupNF("First");
+-        kids = readItemList(this, &firstRef, xref, doc);
++        if (itemDict.isDict()) {
++            const Object &firstRef = itemDict.dictLookupNF("First");
++            kids = readItemList(this, &firstRef, xref, doc);
++        } else {
++            kids = new std::vector<OutlineItem *>();
++        }
+     }
+ }
+
+--
+2.35.5

meta-oe/recipes-support/poppler/poppler_23.03.0.bb

@@ -7,6 +7,7 @@ SRC_URI = "http://poppler.freedesktop.org/${BP}.tar.xz \
            file://0001-Do-not-overwrite-all-our-build-flags.patch \
            file://basename-include.patch \
            file://0001-cmake-Do-not-use-isystem.patch \
+           file://CVE-2023-34872.patch \
            "
 SRC_URI[sha256sum] = "b04148bf849c1965ada7eff6be4685130e3a18a84e0cce73bf9bc472ec32f2b4"