03/03: [LIBTIRPC] Fix CVE-2018-14622 by backporting its fix

[Pierre Schweitzer]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=000bbe074ed29d1efe39d…

commit 000bbe074ed29d1efe39d4d65c81d1c1ead07c93
Author:     Pierre Schweitzer <pierre(a)reactos.org>
AuthorDate: Wed Sep 5 21:44:47 2018 +0200
Commit:     Pierre Schweitzer <pierre(a)reactos.org>
CommitDate: Wed Sep 5 22:06:30 2018 +0200

    [LIBTIRPC] Fix CVE-2018-14622 by backporting its fix
    
    CORE-15005
---
 dll/3rdparty/libtirpc/src/svc_vc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dll/3rdparty/libtirpc/src/svc_vc.c b/dll/3rdparty/libtirpc/src/svc_vc.c
index 4d7e1f1fd2..2ccbe0e340 100644
--- a/dll/3rdparty/libtirpc/src/svc_vc.c
+++ b/dll/3rdparty/libtirpc/src/svc_vc.c
@@ -340,6 +340,10 @@ again:
 	 */
 
 	newxprt = makefd_xprt(sock, r->sendsize, r->recvsize);
+#ifdef __REACTOS__ // CVE-2018-14622
+	if (!newxprt)
+		return (FALSE);
+#endif
 
 	if (!__rpc_set_netbuf(&newxprt->xp_rtaddr, &addr, len))
 		return (FALSE);