[bug#56302] [PATCH v2] gnu: ruby: Update to 2.7.6 [security fixes].

[Remco van 't Veer <remco@remworks.net>]

Includes fixes for: CVE-2022-28739, CVE-2021-41816, and CVE-2021-41817.

* gnu/packages/ruby.scm (ruby-2.7-fixed): New variable.
(ruby-2.7)[replacement]: Graft.
---
 gnu/packages/ruby.scm | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/gnu/packages/ruby.scm b/gnu/packages/ruby.scm
index 68e5d8dfd6..0b6626bdf7 100644
--- a/gnu/packages/ruby.scm
+++ b/gnu/packages/ruby.scm
@@ -28,6 +28,7 @@
 ;;; Copyright © 2021 EuAndreh <eu@euandre.org>
 ;;; Copyright © 2020 Tomás Ortín Fernández <tomasortin@mailbox.org>
 ;;; Copyright © 2021 Giovanni Biscuolo <g@xelera.eu>
+;;; Copyright © 2022 Remco van 't Veer <remco@remworks.net>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -152,6 +153,7 @@ (define-public ruby-2.7
   (package
     (inherit ruby-2.6)
     (version "2.7.4")
+    (replacement ruby-2.7-fixed) ; security fixes
     (source
      (origin
        (inherit (package-source ruby-2.6))
@@ -186,6 +188,20 @@ (define-public ruby-2.7
     (native-inputs
      (list autoconf))))
 
+(define ruby-2.7-fixed
+  (package
+    (inherit ruby-2.7)
+    (version "2.7.6")
+    (source
+     (origin
+       (inherit (package-source ruby-2.7))
+       (uri (string-append "https://cache.ruby-lang.org/pub/ruby/"
+                           (version-major+minor version)
+                           "/ruby-" version ".tar.gz"))
+       (sha256
+        (base32
+         "042xrdk7hsv4072bayz3f8ffqh61i8zlhvck10nfshllq063n877"))))))
+
 (define-public ruby-3.0
   (package
     (inherit ruby-2.7)
-- 
2.36.1