curl: add patches for CVE-2021-22876, CVE-2021-22890

hand-backported from upstream fixes
erictapen · Apr 2, 2021 · 6808269 · 6808269
1 parent 9476b3a
commit 6808269
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diff --git a/pkgs/tools/networking/curl/7.74.0-CVE-2021-22876.patch b/pkgs/tools/networking/curl/7.74.0-CVE-2021-22876.patch
@@ -0,0 +1,139 @@
+Based on upstream 7214288898f5625a6cc196e22a74232eada7861c, adapted by ris to
+compensate for lack of 95cbcec8f986492766c4be3922af1e7644e1e7c5
+
+---
+ lib/transfer.c          | 25 ++++++++++++++--
+ tests/data/Makefile.inc |  2 +-
+ tests/data/test2081     | 66 +++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 90 insertions(+), 3 deletions(-)
+ create mode 100644 tests/data/test2081
+
+diff --git a/lib/transfer.c b/lib/transfer.c
+index 1976bc0338bc..a68c021c84d6 100644
+--- a/lib/transfer.c
++++ b/lib/transfer.c
+@@ -1581,6 +1581,9 @@ CURLcode Curl_follow(struct Curl_easy *data,
+       data->set.followlocation++; /* count location-followers */
+
+       if(data->set.http_auto_referer) {
++        CURLU *u;
++        char *referer;
++
+         /* We are asked to automatically set the previous URL as the referer
+            when we get the next URL. We pick the ->url field, which may or may
+            not be 100% correct */
+@@ -1590,9 +1593,27 @@ CURLcode Curl_follow(struct Curl_easy *data,
+           data->change.referer_alloc = FALSE;
+         }
+
+-        data->change.referer = strdup(data->change.url);
+-        if(!data->change.referer)
++        /* Make a copy of the URL without crenditals and fragment */
++        u = curl_url();
++        if(!u)
++          return CURLE_OUT_OF_MEMORY;
++
++        uc = curl_url_set(u, CURLUPART_URL, data->change.url, 0);
++        if(!uc)
++          uc = curl_url_set(u, CURLUPART_FRAGMENT, NULL, 0);
++        if(!uc)
++          uc = curl_url_set(u, CURLUPART_USER, NULL, 0);
++        if(!uc)
++          uc = curl_url_set(u, CURLUPART_PASSWORD, NULL, 0);
++        if(!uc)
++          uc = curl_url_get(u, CURLUPART_URL, &referer, 0);
++
++        curl_url_cleanup(u);
++
++        if(uc || referer == NULL)
+           return CURLE_OUT_OF_MEMORY;
++
++        data->change.referer = referer;
+         data->change.referer_alloc = TRUE; /* yes, free this later */
+       }
+     }
+diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
+index 2c7a0ca89fd8..ea52683d2254 100644
+--- a/tests/data/Makefile.inc
++++ b/tests/data/Makefile.inc
+@@ -225,7 +225,7 @@ test2064 test2065 test2066 test2067 test2068 test2069 \
+ test2064 test2065 test2066 test2067 test2068 test2069 test2070 \
+          test2071 test2072 test2073 test2074 test2075 test2076 test2077 \
+ test2078 \
+-test2080 \
++test2080 test2081 \
+ test2100 \
+ \
+ test3000 test3001 test3002 test3003 test3004 test3005 test3006 test3007 \
+diff --git a/tests/data/test2081 b/tests/data/test2081
+new file mode 100644
+index 000000000000..a6733e737beb
+--- /dev/null
++++ b/tests/data/test2081
+@@ -0,0 +1,66 @@
++<testcase>
++<info>
++<keywords>
++HTTP
++HTTP GET
++referer
++followlocation
++--write-out
++</keywords>
++</info>
++
++# Server-side
++<reply>
++<data nocheck="yes">
++HTTP/1.1 301 This is a weirdo text message swsclose
++Location: data/%TESTNUMBER0002.txt?coolsite=yes
++Content-Length: 62
++Connection: close
++
++This server reply is for testing a simple Location: following
++</data>
++</reply>
++
++# Client-side
++<client>
++<server>
++http
++</server>
++ <name>
++Automatic referrer credential and anchor stripping check
++ </name>
++ <command>
++http://user:pass@%HOSTIP:%HTTPPORT/we/want/our/%TESTNUMBER#anchor --location --referer ';auto' --write-out '%{referer}\n'
++</command>
++</client>
++
++# Verify data after the test has been "shot"
++<verify>
++<errorcode>
++52
++</errorcode>
++<protocol>
++GET /we/want/our/%TESTNUMBER HTTP/1.1
++Host: %HOSTIP:%HTTPPORT
++Authorization: Basic dXNlcjpwYXNz
++User-Agent: curl/%VERSION
++Accept: */*
++
++GET /we/want/our/data/%TESTNUMBER0002.txt?coolsite=yes HTTP/1.1
++Host: %HOSTIP:%HTTPPORT
++Authorization: Basic dXNlcjpwYXNz
++User-Agent: curl/%VERSION
++Accept: */*
++Referer: http://%HOSTIP:%HTTPPORT/we/want/our/%TESTNUMBER
++
++</protocol>
++<stdout>
++HTTP/1.1 301 This is a weirdo text message swsclose
++Location: data/%TESTNUMBER0002.txt?coolsite=yes
++Content-Length: 62
++Connection: close
++
++http://%HOSTIP:%HTTPPORT/we/want/our/%TESTNUMBER
++</stdout>
++</verify>
++</testcase>