libxml2/SOURCES/libxml2-2.11.0-fix-CVE-2023-39615.patch
2024-01-10 14:23:41 +00:00

33 lines
1.1 KiB
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From d0c3f01e110d54415611c5fa0040cdf4a56053f9 Mon Sep 17 00:00:00 2001
From: Nick Wellnhofer <wellnhofer@aevum.de>
Date: Sat, 6 May 2023 17:47:37 +0200
Subject: [PATCH] parser: Fix old SAX1 parser with custom callbacks
For some reason, xmlCtxtUseOptionsInternal set the start and end element
SAX handlers to the internal DOM builder functions when XML_PARSE_SAX1
was specified. This means that custom SAX handlers could never work with
that flag because these functions would receive the wrong user data
argument and crash immediately.
Fixes #535.
---
parser.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/parser.c b/parser.c
index bb05791d3..0c8bed129 100644
--- a/parser.c
+++ b/parser.c
@@ -14479,8 +14479,6 @@ xmlCtxtUseOptionsInternal(xmlParserCtxtPtr ctxt, int options, const char *encodi
}
#ifdef LIBXML_SAX1_ENABLED
if (options & XML_PARSE_SAX1) {
- ctxt->sax->startElement = xmlSAX2StartElement;
- ctxt->sax->endElement = xmlSAX2EndElement;
ctxt->sax->startElementNs = NULL;
ctxt->sax->endElementNs = NULL;
ctxt->sax->initialized = 1;
--
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