For details see:
https://fossies.org/linux/wget/ChangeLog

Excerpt from "NEWS":

"2019-04-05  Tim Ruehsen  <tim.ruehsen(a)gmx.de>

Fix a buffer overflow vulnerability
* src/iri.c(do_conversion): Reallocate the output buffer to a larger
  size if it is already full"

Signed-off-by: Matthias Fischer <matthias.fischer(a)ipfire.org>
---
 lfs/wget | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lfs/wget b/lfs/wget
index ac2fa826c..00ca75033 100644
--- a/lfs/wget
+++ b/lfs/wget
@@ -24,7 +24,7 @@
 
 include Config
 
-VER        = 1.20.2
+VER        = 1.20.3
 
 THISAPP    = wget-$(VER)
 DL_FILE    = $(THISAPP).tar.gz
@@ -40,7 +40,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_MD5 = 2692f6678e93601441306b5c1fc6a77a
+$(DL_FILE)_MD5 = db4e6dc7977cbddcd543b240079a4899
 
 install : $(TARGET)
 
-- 
2.18.0