poppler: fix CVE-2025-50420

An issue in the pdfseparate utility of freedesktop poppler
v25.04.0 allows attackers to cause an infinite recursion via
supplying a crafted PDF file. This can lead to a Denial of
Service (DoS).

Reference:
https://nvd.nist.gov/vuln/detail/CVE-2025-50420

Upstream patch:
https://gitlab.freedesktop.org/poppler/poppler/-/commit/a7025904e3330dd6cf95f3664ef6fc77034cc5e1

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>

2 files changed, 39 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/poppler/poppler/CVE-2025-50420.patch b/meta-oe/recipes-support/poppler/poppler/CVE-2025-50420.patch
new file mode 100644
index 0000000000..a6396eeba2
--- /dev/null
+++ b/meta-oe/recipes-support/poppler/poppler/CVE-2025-50420.patch
@@ -0,0 +1,38 @@
+From a7025904e3330dd6cf95f3664ef6fc77034cc5e1 Mon Sep 17 00:00:00 2001
+From: Sune Vuorela <sune@vuorela.dk>
+Date: Tue, 29 Jul 2025 14:14:00 +0200
+Subject: [PATCH] Fix crash in pdfseparate
+
+Don't continue recursing in PDFDoc::mark* if things looks a bit weirder
+than expected
+
+CVE: CVE-2025-50420
+Upstream-Status: Backport [https://gitlab.freedesktop.org/poppler/poppler/-/commit/a7025904e3330dd6cf95f3664ef6fc77034cc5e1]
+
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ poppler/PDFDoc.cc | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/poppler/PDFDoc.cc b/poppler/PDFDoc.cc
+index 872841c..a7c2e24 100644
+--- a/poppler/PDFDoc.cc
++++ b/poppler/PDFDoc.cc
+@@ -1818,6 +1818,15 @@ bool PDFDoc::markAnnotations(Object *annotsObj, XRef *xRef, XRef *countRef, unsi
+             if (obj1.isDict()) {
+                 Dict *dict = obj1.getDict();
+                 Object type = dict->lookup("Type");
++                if (type.isNull()) {
++                    Object subType = dict->lookup("SubType");
++                    // Type is optional, subtype is required
++                    // If neither of them exists, something is probably
++                    // weird here, so let us just skip this entry
++                    if (subType.isNull()) {
++                        continue;
++                    }
++                }
+                 if (type.isName() && strcmp(type.getName(), "Annot") == 0) {
+                     const Object &obj2 = dict->lookupNF("P");
+                     if (obj2.isRef()) {
+--
+2.40.0
diff --git a/meta-oe/recipes-support/poppler/poppler_23.04.0.bb b/meta-oe/recipes-support/poppler/poppler_23.04.0.bb
index 81574177e0..7a6666936e 100644
--- a/meta-oe/recipes-support/poppler/poppler_23.04.0.bb
+++ b/meta-oe/recipes-support/poppler/poppler_23.04.0.bb
@@ -18,6 +18,7 @@ SRC_URI = "http://poppler.freedesktop.org/${BP}.tar.xz \
            file://CVE-2025-43903-0002.patch \
            file://CVE-2025-52886-0001.patch \
            file://CVE-2025-52886-0002.patch \
+           file://CVE-2025-50420.patch \
            "
 SRC_URI[sha256sum] = "b6d893dc7dcd4138b9e9df59a13c59695e50e80dc5c2cacee0674670693951a1"