CVE-2017-1000101.patch

From 453e7a7a03a2cec749abd3878a48e728c515cca7 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 1 Aug 2017 17:16:07 +0200
Subject: [PATCH] glob: do not continue parsing after a strtoul() overflow
 range

Added test 1289 to verify.

CVE-2017-1000101

Bug: https://curl.se/docs/adv_20170809A.html
Reported-by: Brian Carpenter
---
 src/tool_urlglob.c      |  5 ++++-
 tests/data/Makefile.inc |  2 +-
 tests/data/test1289     | 35 +++++++++++++++++++++++++++++++++++
 3 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 tests/data/test1289

diff --git a/src/tool_urlglob.c b/src/tool_urlglob.c
index 6b1ece008..d56dcd912 100644
--- a/src/tool_urlglob.c
+++ b/src/tool_urlglob.c
@@ -271,11 +271,14 @@ static CURLcode glob_range(URLGlob *glob, char **patternp,
           endp = NULL;
           goto fail;
         }
         errno = 0;
         max_n = strtoul(pattern, &endp, 10);
-        if(errno || (*endp == ':')) {
+        if(errno)
+          /* overflow */
+          endp = NULL;
+        else if(*endp == ':') {
           pattern = endp+1;
           errno = 0;
           step_n = strtoul(pattern, &endp, 10);
           if(errno)
             /* over/underflow situation */
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index 35446cf71..59f692e8f 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -130,11 +130,11 @@ test1236 test1237 test1238 test1239 test1240 test1241 test1242 test1243 \
 test1244 test1245 test1246 test1247 test1248 test1249 test1250 test1251 \
 test1252 test1253 test1254 test1255 test1256 test1257 test1258 test1259 \
 test1260 test1261 test1262 \
 \
 test1280 test1281 test1282 test1283 test1284 test1285 test1286 test1287 \
-test1288 \
+test1288 test1289 \
 test1298 test1299 \
 test1300 test1301 test1302 test1303 test1304 test1305 test1306 test1307 \
 test1308 test1309 test1310 test1311 test1312 test1313 test1314 test1315 \
 test1316 test1317 test1318 test1319 test1320 test1321 test1322 test1323 \
          test1325 test1326 test1327 test1328 test1329 test1330 test1331 \
diff --git a/tests/data/test1289 b/tests/data/test1289
new file mode 100644
index 000000000..d679cc0bc
--- /dev/null
+++ b/tests/data/test1289
@@ -0,0 +1,35 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+globbing
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+<name>
+globbing with overflow and bad syntxx
+</name>
+<command>
+http://ur%20[0-60000000000000000000
+</command>
+</client>
+
+# Verify data after the test has been "shot"
+<verify>
+# curl: (3) [globbing] bad range in column 
+<errorcode>
+3
+</errorcode>
+</verify>
+</testcase>
-- 
2.13.3