diff options
Diffstat (limited to 'package/network/utils/curl/patches/113-CVE-2018-1000122.patch')
-rw-r--r-- | package/network/utils/curl/patches/113-CVE-2018-1000122.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/package/network/utils/curl/patches/113-CVE-2018-1000122.patch b/package/network/utils/curl/patches/113-CVE-2018-1000122.patch new file mode 100644 index 0000000..68a81ae --- /dev/null +++ b/package/network/utils/curl/patches/113-CVE-2018-1000122.patch @@ -0,0 +1,33 @@ +From d70b74d6f893947aa22d3f14df10f92a8c349388 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <daniel@haxx.se> +Date: Thu, 8 Mar 2018 10:33:16 +0100 +Subject: [PATCH] readwrite: make sure excess reads don't go beyond buffer end + +CVE-2018-1000122 +Bug: https://curl.haxx.se/docs/adv_2018-b047.html + +Detected by OSS-fuzz +--- + lib/transfer.c | 9 +++++++-- + 1 file changed, 7 insertions(+), 2 deletions(-) + +--- a/lib/transfer.c ++++ b/lib/transfer.c +@@ -791,10 +791,15 @@ static CURLcode readwrite_data(struct Cu + + } /* if(!header and data to read) */ + +- if(conn->handler->readwrite && +- (excess > 0 && !conn->bits.stream_was_rewound)) { ++ if(conn->handler->readwrite && excess && !conn->bits.stream_was_rewound) { + /* Parse the excess data */ + k->str += nread; ++ ++ if(&k->str[excess] > &k->buf[data->set.buffer_size]) { ++ /* the excess amount was too excessive(!), make sure ++ it doesn't read out of buffer */ ++ excess = &k->buf[data->set.buffer_size] - k->str; ++ } + nread = (ssize_t)excess; + + result = conn->handler->readwrite(data, conn, &nread, &readmore); |