| All versions of the SDP server in BlueZ 5.46 and earlier are vulnerable to an |
| information disclosure vulnerability which allows remote attackers to obtain |
| sensitive information from the bluetoothd process memory. This vulnerability |
| lies in the processing of SDP search attribute requests. |
| |
| CVE: CVE-2017-1000250 |
| Upstream-Status: Backport |
| Signed-off-by: Ross Burton <ross.burton@intel.com> |
| |
| From 9e009647b14e810e06626dde7f1bb9ea3c375d09 Mon Sep 17 00:00:00 2001 |
| From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> |
| Date: Wed, 13 Sep 2017 10:01:40 +0300 |
| Subject: sdp: Fix Out-of-bounds heap read in service_search_attr_req function |
| |
| Check if there is enough data to continue otherwise return an error. |
| --- |
| src/sdpd-request.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/src/sdpd-request.c b/src/sdpd-request.c |
| index 1eefdce..318d044 100644 |
| --- a/src/sdpd-request.c |
| +++ b/src/sdpd-request.c |
| @@ -917,7 +917,7 @@ static int service_search_attr_req(sdp_req_t *req, sdp_buf_t *buf) |
| } else { |
| /* continuation State exists -> get from cache */ |
| sdp_buf_t *pCache = sdp_get_cached_rsp(cstate); |
| - if (pCache) { |
| + if (pCache && cstate->cStateValue.maxBytesSent < pCache->data_size) { |
| uint16_t sent = MIN(max, pCache->data_size - cstate->cStateValue.maxBytesSent); |
| pResponse = pCache->data; |
| memcpy(buf->data, pResponse + cstate->cStateValue.maxBytesSent, sent); |
| -- |
| cgit v1.1 |