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| author | Steve Holme <steve_holme@hotmail.com> | 2016-05-29 22:57:40 +0200 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2016-05-30 08:14:27 +0200 |
| commit | 6df916d751e72fc9a1febc07bb59c4ddd886c043 (patch) | |
| tree | 4719db7dad6c1a8068988e22f5569a120a602091 /lib/telnet.c | |
| parent | ddf25f6b28c944702792b9555d47cdeb8217fece (diff) | |
| download | curl-6df916d751e72fc9a1febc07bb59c4ddd886c043.tar.gz | |
loadlibrary: Only load system DLLs from the system directory
Inspiration provided by: Daniel Stenberg and Ray Satiro
Bug: https://curl.haxx.se/docs/adv_20160530.html
Ref: Windows DLL hijacking with curl, CVE-2016-4802
Diffstat (limited to 'lib/telnet.c')
| -rw-r--r-- | lib/telnet.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/telnet.c b/lib/telnet.c index 6b73bc5bd..870a1b825 100644 --- a/lib/telnet.c +++ b/lib/telnet.c @@ -51,6 +51,7 @@ #include "telnet.h" #include "connect.h" #include "progress.h" +#include "system_win32.h" #define TELOPTS #define TELCMDS @@ -1334,7 +1335,7 @@ static CURLcode telnet_do(struct connectdata *conn, bool *done) /* OK, so we have WinSock 2.0. We need to dynamically */ /* load ws2_32.dll and get the function pointers we need. */ - wsock2 = LoadLibrary(TEXT("WS2_32.DLL")); + wsock2 = Curl_load_library(TEXT("WS2_32.DLL")); if(wsock2 == NULL) { failf(data, "failed to load WS2_32.DLL (%d)", ERRNO); return CURLE_FAILED_INIT; |