38 lines
1.0 KiB
Diff
38 lines
1.0 KiB
Diff
From 4d729e322fae359a1aefaafec1144764a54e8ad4 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de>
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Date: Mon, 6 Mar 2017 10:04:22 +0100
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Subject: [PATCH] Fix CRLF injection in Wget host part
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* src/url.c (url_parse): Reject control characters in host part of URL
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Reported-by: Orange Tsai
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---
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src/url.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/src/url.c b/src/url.c
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index 8f8ff0b..7d36b27 100644
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--- a/src/url.c
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+++ b/src/url.c
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@@ -925,6 +925,17 @@ url_parse (const char *url, int *error, struct iri *iri, bool percent_encode)
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url_unescape (u->host);
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host_modified = true;
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+ /* check for invalid control characters in host name */
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+ for (p = u->host; *p; p++)
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+ {
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+ if (c_iscntrl(*p))
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+ {
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+ url_free(u);
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+ error_code = PE_INVALID_HOST_NAME;
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+ goto error;
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+ }
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+ }
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+
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/* Apply IDNA regardless of iri->utf8_encode status */
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if (opt.enable_iri && iri)
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{
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--
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2.7.4
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