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33 lines
994 B
Diff
33 lines
994 B
Diff
From 0e1a49c8907645d2e155f0d89d4d9895ac5112b5 Mon Sep 17 00:00:00 2001
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From: Zhipeng Xie <xiezhipeng1@huawei.com>
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Date: Thu, 12 Dec 2019 17:30:55 +0800
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Subject: [PATCH] Fix infinite loop in xmlStringLenDecodeEntities
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When ctxt->instate == XML_PARSER_EOF,xmlParseStringEntityRef
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return NULL which cause a infinite loop in xmlStringLenDecodeEntities
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Found with libFuzzer.
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Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
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---
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parser.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/parser.c b/parser.c
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index d1c31963..a34bb6cd 100644
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--- a/parser.c
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+++ b/parser.c
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@@ -2646,7 +2646,8 @@ xmlStringLenDecodeEntities(xmlParserCtxtPtr ctxt, const xmlChar *str, int len,
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else
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c = 0;
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while ((c != 0) && (c != end) && /* non input consuming loop */
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- (c != end2) && (c != end3)) {
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+ (c != end2) && (c != end3) &&
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+ (ctxt->instate != XML_PARSER_EOF)) {
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if (c == 0) break;
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if ((c == '&') && (str[1] == '#')) {
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--
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2.24.1
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