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32 lines
816 B
Diff
32 lines
816 B
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Sebastian Pipping <sebastian@pipping.org>
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Date: Mon, 19 Aug 2024 22:26:07 +0200
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Subject: [PATCH] lib: Reject negative len for XML_ParseBuffer
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CVE-2024-45490
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Reported by TaiYou
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Change-Id: Ic070b629e085c2aa5fd2711e1738acde42fee444
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---
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lib/xmlparse.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/lib/xmlparse.c b/lib/xmlparse.c
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index d3b43171..d9f33395 100644
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--- a/lib/xmlparse.c
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+++ b/lib/xmlparse.c
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@@ -1672,6 +1672,12 @@ XML_ParseBuffer(XML_Parser parser, int len, int isFinal)
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if (parser == NULL)
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return XML_STATUS_ERROR;
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+
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+ if (len < 0) {
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+ errorCode = XML_ERROR_INVALID_ARGUMENT;
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+ return XML_STATUS_ERROR;
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+ }
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+
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switch (ps_parsing) {
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case XML_SUSPENDED:
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errorCode = XML_ERROR_SUSPENDED;
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