[openssh-commits] [openssh] 07/07: upstream: relax checking of authorized_keys environment="..."

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djm pushed a commit to branch master
in repository openssh.

commit 40f5f03544a07ebd2003b443d42e85cb51d94d59
Author: djm at openbsd.org <djm at openbsd.org>
Date:   Fri Apr 6 04:15:45 2018 +0000

    upstream: relax checking of authorized_keys environment="..."
    
    options to allow underscores in variable names (regression introduced in
    7.7). bz2851, ok deraadt@
    
    OpenBSD-Commit-ID: 69690ffe0c97ff393f2c76d25b4b3d2ed4e4ac9c
---
 auth-options.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/auth-options.c b/auth-options.c
index b528c197..ef57ebf4 100644
--- a/auth-options.c
+++ b/auth-options.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth-options.c,v 1.78 2018/03/14 05:35:40 djm Exp $ */
+/* $OpenBSD: auth-options.c,v 1.79 2018/04/06 04:15:45 djm Exp $ */
 /*
  * Copyright (c) 2018 Damien Miller <djm at mindrot.org>
  *
@@ -394,7 +394,7 @@ sshauthopt_parse(const char *opts, const char **errstrp)
 				goto fail;
 			}
 			for (cp = opt; cp < tmp; cp++) {
-				if (!isalnum((u_char)*cp)) {
+				if (!isalnum((u_char)*cp) && *cp != '_') {
 					free(opt);
 					errstr = "invalid environment string";
 					goto fail;

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