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https://github.com/openharmony/third_party_libxml2.git
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@ran-zhao-yu
30 lines
828 B
Diff
30 lines
828 B
Diff
From 92721970884fcc13305cb8e23cdc5f0dd7667c2c Mon Sep 17 00:00:00 2001
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From: Nick Wellnhofer <wellnhofer@aevum.de>
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Date: Sat, 14 Oct 2023 22:45:54 +0200
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Subject: [PATCH] [CVE-2024-25062] xmlreader: Don't expand XIncludes when
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backtracking
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Fixes a use-after-free if XML Reader if used with DTD validation and
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XInclude expansion.
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Fixes #604.
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---
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xmlreader.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/xmlreader.c b/xmlreader.c
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index 5c37738e..1f903306 100644
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--- a/xmlreader.c
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+++ b/xmlreader.c
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@@ -1378,6 +1378,7 @@ node_found:
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* Handle XInclude if asked for
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*/
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if ((reader->xinclude) && (reader->in_xinclude == 0) &&
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+ (reader->state != XML_TEXTREADER_BACKTRACK) &&
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(reader->node != NULL) &&
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(reader->node->type == XML_ELEMENT_NODE) &&
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(reader->node->ns != NULL) &&
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--
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GitLab
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