| From 261658ddaf24bb35edd477cf09ec055569fd9894 Mon Sep 17 00:00:00 2001 |
| From: "liucheng (G)" <liucheng32@huawei.com> |
| Date: Thu, 29 Aug 2019 13:47:40 +0000 |
| Subject: [PATCH 6/9] CVE: nfs: fix stack-based buffer overflow in some |
| nfs_handler reply helper functions |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| This patch adds a check to nfs_handler to fix buffer overflow for CVE-2019-14197, |
| CVE-2019-14200, CVE-2019-14201, CVE-2019-14202, CVE-2019-14203 and CVE-2019-14204. |
| |
| Signed-off-by: Cheng Liu <liucheng32@huawei.com> |
| Reported-by: Fermín Serna <fermin@semmle.com> |
| Acked-by: Joe Hershberger <joe.hershberger@ni.com> |
| |
| Upstream-Status: Backport[http://git.denx.de/?p=u-boot.git;a=commit; |
| h=741a8a08ebe5bc3ccfe3cde6c2b44ee53891af21] |
| |
| CVE: CVE-2019-14197, CVE-2019-14200, CVE-2019-14201, CVE-2019-14202, |
| CVE-2019-14203 and CVE-2019-14204 |
| |
| Signed-off-by: Meng Li <Meng.Li@windriver.com> |
| --- |
| net/nfs.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/net/nfs.c b/net/nfs.c |
| index d6a7f8e827..b7cf3b3a18 100644 |
| --- a/net/nfs.c |
| +++ b/net/nfs.c |
| @@ -732,6 +732,9 @@ static void nfs_handler(uchar *pkt, unsigned dest, struct in_addr sip, |
| |
| debug("%s\n", __func__); |
| |
| + if (len > sizeof(struct rpc_t)) |
| + return; |
| + |
| if (dest != nfs_our_port) |
| return; |
| |
| -- |
| 2.17.1 |
| |