--- /dev/null
+From 13f135c7a252cc46cff96e75968d92b6dc8dce1b Mon Sep 17 00:00:00 2001
+From: Werner Koch <wk@gnupg.org>
+Date: Fri, 8 Jun 2018 10:45:21 +0200
+Subject: [PATCH] gpg: Sanitize diagnostic with the original file name.
+
+* g10/mainproc.c (proc_plaintext): Sanitize verbose output.
+--
+
+This fixes a forgotten sanitation of user supplied data in a verbose
+mode diagnostic. The mention CVE is about using this to inject
+status-fd lines into the stderr output. Other harm good as well be
+done. Note that GPGME based applications are not affected because
+GPGME does not fold status output into stderr.
+
+CVE-id: CVE-2018-12020
+GnuPG-bug-id: 4012
+
+Upstream-Status: Backport [https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=13f135c7a252cc46cff96e75968d92b6dc8dce1b]
+
+Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
+---
+ g10/mainproc.c | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/g10/mainproc.c b/g10/mainproc.c
+index d2ceec2fd..a9da08f74 100644
+--- a/g10/mainproc.c
++++ b/g10/mainproc.c
+@@ -851,7 +851,14 @@ proc_plaintext( CTX c, PACKET *pkt )
+ if (pt->namelen == 8 && !memcmp( pt->name, "_CONSOLE", 8))
+ log_info (_("Note: sender requested \"for-your-eyes-only\"\n"));
+ else if (opt.verbose)
+- log_info (_("original file name='%.*s'\n"), pt->namelen, pt->name);
++ {
++ /* We don't use print_utf8_buffer because that would require a
++ * string change which we don't want in 2.2. It is also not
++ * clear whether the filename is always utf-8 encoded. */
++ char *tmp = make_printable_string (pt->name, pt->namelen, 0);
++ log_info (_("original file name='%.*s'\n"), (int)strlen (tmp), tmp);
++ xfree (tmp);
++ }
+
+ free_md_filter_context (&c->mfx);
+ if (gcry_md_open (&c->mfx.md, 0, 0))
+--
+2.13.3
+
