diff --git a/varnish-vsv00001.patch b/varnish-vsv00001.patch
new file mode 100644
index 0000000..bd7a0b6
--- /dev/null
+++ b/varnish-vsv00001.patch
@@ -0,0 +1,12 @@
+diff -rup varnish-5.1.2.orig/bin/varnishd/http1/cache_http1_vfp.c varnish-5.1.2/bin/varnishd/http1/cache_http1_vfp.c
+--- varnish-5.1.2.orig/bin/varnishd/http1/cache_http1_vfp.c	2017-08-02 22:43:30.137116214 +0200
++++ varnish-5.1.2/bin/varnishd/http1/cache_http1_vfp.c	2017-08-02 22:44:06.433218762 +0200
+@@ -152,7 +152,7 @@ v1f_pull_chunked(struct vfp_ctx *vc, str
+ 		if (q == NULL || *q != '\0')
+ 			return (VFP_Error(vc, "chunked header number syntax"));
+ 		cl = (ssize_t)cll;
+-		if ((uintmax_t)cl != cll)
++		if (cl < 0 || (uintmax_t)cl != cll)
+ 			return (VFP_Error(vc, "bogusly large chunk size"));
+ 
+ 		vfe->priv2 = cl;
diff --git a/varnish.spec b/varnish.spec
index b32515f..d8ae398 100644
--- a/varnish.spec
+++ b/varnish.spec
@@ -17,7 +17,7 @@
 Summary: High-performance HTTP accelerator
 Name: varnish
 Version: 5.1.2
-Release: 1%{?v_rc}%{?dist}.1
+Release: 3%{?v_rc}%{?dist}
 License: BSD
 Group: System Environment/Daemons
 URL: http://www.varnish-cache.org/
@@ -27,6 +27,7 @@ Patch1:  varnish-5.1.1.fix_ld_library_path_in_doc_build.patch
 Patch4:  varnish-4.0.3_fix_varnish4_selinux.el6.patch
 Patch6:  varnish-4.1.0.fix_find-provides.patch
 Patch9:  varnish-5.1.1.fix_python_version.patch
+Patch10: varnish-vsv00001.patch
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -396,6 +397,9 @@ fi
 %endif
 
 %changelog
+* Wed Aug 02 2017 Patrick Uiterwijk <patrick@puiterwijk.org> - 5.1.2-3
+- Added patch for vsv00001
+
 * Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 5.1.2-1.1
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild