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curl: Security fix for CVE-2016-8624

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Affected versions: curl 7.1 to and including 7.50.3
Not affected versions: curl >= 7.51.0

(From OE-Core rev: 26e464767ab53cb78e4ede10c77fe12907a7daad)

Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Thiruvadi Rajaraman
2017-11-04 08:08:25 -07:00
committed by Richard Purdie
parent 5affd0af1f
commit c4339c0e74
2 changed files with 69 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
meta/recipes-support/curl/curl/CVE-2016-8624.patch Normal file
View File

@@ -0,0 +1,68 @@
From 44ab42e55bbe329777ee05d50aea1ee059221652 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 11 Oct 2016 00:48:35 +0200
Subject: [PATCH] urlparse: accept '#' as end of host name
'http://example.com#@127.0.0.1/x.txt' equals a request to example.com
for the '/' document with the rest of the URL being a fragment.
Upstream-Status: Backport
CVE: CVE-2016-8624
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
---
lib/url.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/lib/url.c b/lib/url.c
index 74e9bf5..ce94281 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -4159,11 +4159,11 @@ static CURLcode parseurlandfillconn(struct Curl_easy *data,
/* clear path */
char slashbuf[4];
path[0]=0;
rc = sscanf(data->change.url,
- "%15[^\n:]:%3[/]%[^\n/?]%[^\n]",
+ "%15[^\n:]:%3[/]%[^\n/?#]%[^\n]",
protobuf, slashbuf, conn->host.name, path);
if(2 == rc) {
failf(data, "Bad URL");
return CURLE_URL_MALFORMAT;
}
@@ -4171,11 +4171,11 @@ static CURLcode parseurlandfillconn(struct Curl_easy *data,
/*
* The URL was badly formatted, let's try the browser-style _without_
* protocol specified like 'http://'.
*/
- rc = sscanf(data->change.url, "%[^\n/?]%[^\n]", conn->host.name, path);
+ rc = sscanf(data->change.url, "%[^\n/?#]%[^\n]", conn->host.name, path);
if(1 > rc) {
/*
* We couldn't even get this format.
* djgpp 2.04 has a sscanf() bug where 'conn->host.name' is
* assigned, but the return value is EOF!
@@ -4276,14 +4276,14 @@ static CURLcode parseurlandfillconn(struct Curl_easy *data,
strcpy(path, "/");
rebuild_url = TRUE;
}
/* If the URL is malformatted (missing a '/' after hostname before path) we
- * insert a slash here. The only letter except '/' we accept to start a path
- * is '?'.
+ * insert a slash here. The only letters except '/' that can start a path is
+ * '?' and '#' - as controlled by the two sscanf() patterns above.
*/
- if(path[0] == '?') {
+ if(path[0] != '/') {
/* We need this function to deal with overlapping memory areas. We know
that the memory area 'path' points to is 'urllen' bytes big and that
is bigger than the path. Use +1 to move the zero byte too. */
memmove(&path[1], path, strlen(path)+1);
path[0] = '/';
--
2.9.3

1
meta/recipes-support/curl/curl_7.50.1.bb
View File

@@ -20,6 +20,7 @@ SRC_URI += " file://configure_ac.patch \
file://CVE-2016-8621.patch \
file://CVE-2016-8623.patch \
file://CVE-2016-8617.patch \
file://CVE-2016-8624.patch \
"
SRC_URI[md5sum] = "015f6a0217ca6f2c5442ca406476920b"