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Sona Sarmadi
aa10f103e1
Fixes heap-based buffer overflow in xmlParseConditionalSections(). Upstream patch: https://git.gnome.org/browse/libxml2/commit/ ?id=9b8512337d14c8ddf662fcb98b0135f225a1c489 Upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=756456 (From OE-Core rev: a2980f004519a4baeb4c88ad924e15195fe75e32) Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com> Signed-off-by: Tudor Florea <tudor.florea@enea.com> Signed-off-by: Armin Kuster <akuster808@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
59 lines
1.6 KiB
Diff
59 lines
1.6 KiB
Diff
From 9b8512337d14c8ddf662fcb98b0135f225a1c489 Mon Sep 17 00:00:00 2001
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From: Daniel Veillard <veillard@redhat.com>
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Date: Mon, 23 Feb 2015 11:29:20 +0800
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Subject: Cleanup conditional section error handling
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For https://bugzilla.gnome.org/show_bug.cgi?id=744980
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The error handling of Conditional Section also need to be
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straightened as the structure of the document can't be
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guessed on a failure there and it's better to stop parsing
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as further errors are likely to be irrelevant.
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Fixes CVE-2015-7942.
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Upstream-Status: Backport
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Upstream patch:
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https://git.gnome.org/browse/libxml2/commit/
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?id=9b8512337d14c8ddf662fcb98b0135f225a1c489
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Signed-off-by: Sona Sarmadi <sona.sarmadi@enea.com>
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---
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parser.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/parser.c b/parser.c
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index bbe97eb..fe603ac 100644
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--- a/parser.c
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+++ b/parser.c
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@@ -6770,6 +6770,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
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SKIP_BLANKS;
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if (RAW != '[') {
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xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL);
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+ xmlStopParser(ctxt);
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+ return;
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} else {
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if (ctxt->input->id != id) {
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xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY,
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@@ -6830,6 +6832,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
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SKIP_BLANKS;
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if (RAW != '[') {
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xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL);
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+ xmlStopParser(ctxt);
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+ return;
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} else {
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if (ctxt->input->id != id) {
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xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY,
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@@ -6885,6 +6889,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) {
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} else {
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xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID_KEYWORD, NULL);
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+ xmlStopParser(ctxt);
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+ return;
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}
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if (RAW == 0)
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--
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cgit v0.11.2
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