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From 24262015f741a40c9374b15d24c23b8e98b7b7ae Mon Sep 17 00:00:00 2001
From: Matthew Vernon <matthew@debian.org>
Date: Sun, 9 Feb 2014 16:10:05 +0000
Subject: Include the Debian version in our identification
This makes it easier to audit networks for versions patched against security
vulnerabilities. It has little detrimental effect, as attackers will
generally just try attacks rather than bothering to scan for
vulnerable-looking version strings. (However, see debian-banner.patch.)
Forwarded: not-needed
Last-Update: 2013-09-14
Patch-Name: package-versioning.patch
---
sshconnect.c | 4 ++--
sshd.c | 2 +-
version.h | 7 ++++++-
3 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/sshconnect.c b/sshconnect.c
index 881b0886..d9ed5910 100644
--- a/sshconnect.c
+++ b/sshconnect.c
@@ -526,10 +526,10 @@ send_client_banner(int connection_out, int minor1)
/* Send our own protocol version identification. */
if (compat20) {
xasprintf(&client_version_string, "SSH-%d.%d-%.100s\r\n",
- PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION);
+ PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE);
} else {
xasprintf(&client_version_string, "SSH-%d.%d-%.100s\n",
- PROTOCOL_MAJOR_1, minor1, SSH_VERSION);
+ PROTOCOL_MAJOR_1, minor1, SSH_RELEASE);
}
if (atomicio(vwrite, connection_out, client_version_string,
strlen(client_version_string)) != strlen(client_version_string))
diff --git a/sshd.c b/sshd.c
index 9221632e..602f4740 100644
--- a/sshd.c
+++ b/sshd.c
@@ -378,7 +378,7 @@ sshd_exchange_identification(struct ssh *ssh, int sock_in, int sock_out)
char remote_version[256]; /* Must be at least as big as buf. */
xasprintf(&server_version_string, "SSH-%d.%d-%.100s%s%s\r\n",
- PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION,
+ PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE,
*options.version_addendum == '\0' ? "" : " ",
options.version_addendum);
diff --git a/version.h b/version.h
index c86e2097..f4d8b13a 100644
--- a/version.h
+++ b/version.h
@@ -3,4 +3,9 @@
#define SSH_VERSION "OpenSSH_7.5"
#define SSH_PORTABLE "p1"
-#define SSH_RELEASE SSH_VERSION SSH_PORTABLE
+#define SSH_RELEASE_MINIMUM SSH_VERSION SSH_PORTABLE
+#ifdef SSH_EXTRAVERSION
+#define SSH_RELEASE SSH_RELEASE_MINIMUM " " SSH_EXTRAVERSION
+#else
+#define SSH_RELEASE SSH_RELEASE_MINIMUM
+#endif
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