libxml2/libxml2-2.11.6-CVE-2024-25062.patch
David King 6e322f82fb Fix CVE-2024-25062 (RHEL-29196)
Resolves: RHEL-29196
2024-04-29 09:13:47 +01:00

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Diff

From 2b0aac140d739905c7848a42efc60bfe783a39b7 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sat, 14 Oct 2023 22:45:54 +0200
Subject: [PATCH] [CVE-2024-25062] xmlreader: Don't expand XIncludes when
backtracking
Fixes a use-after-free if XML Reader if used with DTD validation and
XInclude expansion.
Fixes #604.
---
xmlreader.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/xmlreader.c b/xmlreader.c
index 979385a13..fefd68e0b 100644
--- a/xmlreader.c
+++ b/xmlreader.c
@@ -1443,6 +1443,7 @@ node_found:
* Handle XInclude if asked for
*/
if ((reader->xinclude) && (reader->in_xinclude == 0) &&
+ (reader->state != XML_TEXTREADER_BACKTRACK) &&
(reader->node != NULL) &&
(reader->node->type == XML_ELEMENT_NODE) &&
(reader->node->ns != NULL) &&
--
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