curl: apply patch for CVE-2023-32001

https://curl.se/docs/CVE-2023-32001.html

pkgs/tools/networking/curl/CVE-2023-32001.patch

@@ -0,0 +1,34 @@
+From 0c667188e0c6cda615a036b8a2b4125f2c404dde Mon Sep 17 00:00:00 2001
+From: SaltyMilk <soufiane.elmelcaoui@gmail.com>
+Date: Mon, 10 Jul 2023 21:43:28 +0200
+Subject: [PATCH] fopen: optimize
+
+Closes #11419
+---
+ lib/fopen.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/lib/fopen.c b/lib/fopen.c
+index c9c9e3d6e73a2..b6e3cadddef65 100644
+--- a/lib/fopen.c
++++ b/lib/fopen.c
+@@ -56,13 +56,13 @@ CURLcode Curl_fopen(struct Curl_easy *data, const char *filename,
+   int fd = -1;
+   *tempname = NULL;
+ 
+-  if(stat(filename, &sb) == -1 || !S_ISREG(sb.st_mode)) {
+-    /* a non-regular file, fallback to direct fopen() */
+-    *fh = fopen(filename, FOPEN_WRITETEXT);
+-    if(*fh)
+-      return CURLE_OK;
++  *fh = fopen(filename, FOPEN_WRITETEXT);
++  if(!*fh)
+     goto fail;
+-  }
++  if(fstat(fileno(*fh), &sb) == -1 || !S_ISREG(sb.st_mode))
++    return CURLE_OK;
++  fclose(*fh);
++  *fh = NULL;
+ 
+   result = Curl_rand_hex(data, randsuffix, sizeof(randsuffix));
+   if(result)

pkgs/tools/networking/curl/default.nix

@@ -59,6 +59,9 @@ stdenv.mkDerivation (finalAttrs: {
 
   patches = [
     ./7.79.1-darwin-no-systemconfiguration.patch
+
+    # Affected versions: 7.84.0 to and including 8.1.2
+    ./CVE-2023-32001.patch
   ];
 
   outputs = [ "bin" "dev" "out" "man" "devdoc" ];