From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Wed, 3 Sep 2025 13:36:54 +0000 (+0100)
Subject: Check for duplicate entries
X-Git-Tag: archive/raspbian/25.03.0-11.1+rpi1^2~1
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=de3772e97fc48bca35483ab5c01170f7c28d42b6;p=poppler.git

Check for duplicate entries

Origin: https://gitlab.freedesktop.org/poppler/poppler/-/commit/4ce27cc826bf90cc8dbbd8a8c87bd913cccd7ec0
Bug-Debian: https://bugs.debian.org/1117853
Bug-Debian-Security: https://security-tracker.debian.org/tracker/CVE-2025-52885


Gbp-Pq: Name Check-for-duplicate-entries.patch
---

diff --git a/poppler/StructTreeRoot.cc b/poppler/StructTreeRoot.cc
index 99ddbfe..f7a2794 100644
--- a/poppler/StructTreeRoot.cc
+++ b/poppler/StructTreeRoot.cc
@@ -137,6 +137,10 @@ void StructTreeRoot::parseNumberTreeNode(Dict *node)
                 }
                 int keyVal = key.getInt();
                 std::vector<Parent> &vec = parentTree[keyVal];
+                if (!vec.empty()) {
+                    error(errSyntaxError, -1, "Nums item at position {0:d} is a duplicate entry for key {1:d}", i, keyVal);
+                    continue;
+                }
 
                 Object valueArray = nums.arrayGet(i + 1);
                 if (valueArray.isArray()) {