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From 2da531b3068e22cf714f001b493a704b2e9b923f Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 3 May 2019 22:20:37 +0200
Subject: [PATCH] tftp: use the current blksize for recvfrom()
bug: https://curl.haxx.se/docs/CVE-2019-5436.html
Reported-by: l00p3r on hackerone
CVE-2019-5436
Upstream-Status: Backport
CVE: CVE-2019-5436
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
---
lib/tftp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/tftp.c b/lib/tftp.c
index 8b92b7b..289cda2 100644
--- a/lib/tftp.c
+++ b/lib/tftp.c
@@ -1009,7 +1009,7 @@ static CURLcode tftp_connect(struct connectdata *conn, bool *done)
state->sockfd = state->conn->sock[FIRSTSOCKET];
state->state = TFTP_STATE_START;
state->error = TFTP_ERR_NONE;
- state->blksize = TFTP_BLKSIZE_DEFAULT;
+ state->blksize = blksize;
state->requested_blksize = blksize;
((struct sockaddr *)&state->local_addr)->sa_family =
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