From 9422f4a6d630258ae32199868e86758923ca3ad5 Mon Sep 17 00:00:00 2001 From: Daniel Stenberg 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. Bug: https://curl.haxx.se/docs/adv_20170809A.html Reported-by: Brian Carpenter Upstream-Status: Backport CVE: CVE-2017-1000101 Signed-off-by: Rajkumar Veer --- 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 a357b8b..f30072b 100644 --- a/src/tool_urlglob.c +++ b/src/tool_urlglob.c @@ -259,7 +259,10 @@ static CURLcode glob_range(URLGlob *glob, char **patternp, pattern = endp+1; 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); diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc index 9c50673..52eaf26 100644 --- a/tests/data/Makefile.inc +++ b/tests/data/Makefile.inc @@ -127,7 +127,7 @@ test1216 test1217 test1218 test1219 \ test1220 test1221 test1222 test1223 test1224 test1225 test1226 test1227 \ test1228 test1229 test1230 test1231 test1232 test1233 test1234 test1235 \ test1236 test1237 test1238 test1239 test1240 test1241 test1242 test1243 \ -test1244 \ +test1244 test1289\ \ test1300 test1301 test1302 test1303 test1304 test1305 test1306 test1307 \ test1308 test1309 test1310 test1311 test1312 test1313 test1314 test1315 \ diff --git a/tests/data/test1289 b/tests/data/test1289 new file mode 100644 index 0000000..d679cc0 --- /dev/null +++ b/tests/data/test1289 @@ -0,0 +1,35 @@ + + + +HTTP +HTTP GET +globbing + + + +# +# Server-side + + + +# Client-side + + +http + + +globbing with overflow and bad syntxx + + +http://ur%20[0-60000000000000000000 + + + +# Verify data after the test has been "shot" + +# curl: (3) [globbing] bad range in column + +3 + + + -- 1.9.1