29 lines
769 B
Diff
29 lines
769 B
Diff
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From 5c1a31642e243f4870c0bd1f2afc7597976521bf 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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References: CVE-2024-45490
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References: bsc#1230036
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Upstream: Backport from upstream
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Reported by TaiYou
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---
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expat/lib/xmlparse.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- firefox-128.2.0/parser/expat/lib/xmlparse.c
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+++ firefox-128.2.0_new/parser/expat/lib/xmlparse.c
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@@ -1978,6 +1978,12 @@
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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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+ parser->m_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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