| From 4d729e322fae359a1aefaafec1144764a54e8ad4 Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Tim=20R=C3=BChsen?= <tim.ruehsen@gmx.de> |
| Date: Mon, 6 Mar 2017 10:04:22 +0100 |
| Subject: [PATCH] Fix CRLF injection in Wget host part |
| |
| * src/url.c (url_parse): Reject control characters in host part of URL |
| |
| Reported-by: Orange Tsai |
| |
| Upstream-Status: Backport |
| [http://git.savannah.gnu.org/cgit/wget.git/commit/?id=4d729e322fae359a1aefaafec1144764a54e8ad4] |
| |
| CVE: CVE-2017-6508 |
| |
| Signed-off-by: Yi Zhao <yi.zhao@windriver.com> |
| --- |
| src/url.c | 11 +++++++++++ |
| 1 file changed, 11 insertions(+) |
| |
| diff --git a/src/url.c b/src/url.c |
| index 8f8ff0b..7d36b27 100644 |
| --- a/src/url.c |
| +++ b/src/url.c |
| @@ -925,6 +925,17 @@ url_parse (const char *url, int *error, struct iri *iri, bool percent_encode) |
| url_unescape (u->host); |
| host_modified = true; |
| |
| + /* check for invalid control characters in host name */ |
| + for (p = u->host; *p; p++) |
| + { |
| + if (c_iscntrl(*p)) |
| + { |
| + url_free(u); |
| + error_code = PE_INVALID_HOST_NAME; |
| + goto error; |
| + } |
| + } |
| + |
| /* Apply IDNA regardless of iri->utf8_encode status */ |
| if (opt.enable_iri && iri) |
| { |
| -- |
| 2.7.4 |
| |