You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.3 KiB
43 lines
1.3 KiB
3 weeks ago
|
diff -up openssh/sshd.c.ip-opts openssh/sshd.c
|
||
|
|
--- openssh/sshd-session.c.ip-opts 2016-07-25 13:58:48.998507834 +0200
|
||
|
|
+++ openssh/sshd-session.c 2016-07-25 14:01:28.346469878 +0200
|
||
|
|
@@ -1507,12 +1507,32 @@ check_ip_options(struct ssh *ssh)
|
||
|
|
|
||
|
|
if (getsockopt(sock_in, IPPROTO_IP, IP_OPTIONS, opts,
|
||
|
|
&option_size) >= 0 && option_size != 0) {
|
||
|
|
- text[0] = '\0';
|
||
|
|
- for (i = 0; i < option_size; i++)
|
||
|
|
- snprintf(text + i*3, sizeof(text) - i*3,
|
||
|
|
- " %2.2x", opts[i]);
|
||
|
|
- fatal("Connection from %.100s port %d with IP opts: %.800s",
|
||
|
|
- ssh_remote_ipaddr(ssh), ssh_remote_port(ssh), text);
|
||
|
|
+ i = 0;
|
||
|
|
+ do {
|
||
|
|
+ switch (opts[i]) {
|
||
|
|
+ case 0:
|
||
|
|
+ case 1:
|
||
|
|
+ ++i;
|
||
|
|
+ break;
|
||
|
|
+ case 130:
|
||
|
|
+ case 133:
|
||
|
|
+ case 134:
|
||
|
|
+ if (i + 1 < option_size && opts[i + 1] >= 2) {
|
||
|
|
+ i += opts[i + 1];
|
||
|
|
+ break;
|
||
|
|
+ }
|
||
|
|
+ /* FALLTHROUGH */
|
||
|
|
+ default:
|
||
|
|
+ /* Fail, fatally, if we detect either loose or strict
|
||
|
|
+ * or incorrect source routing options. */
|
||
|
|
+ text[0] = '\0';
|
||
|
|
+ for (i = 0; i < option_size; i++)
|
||
|
|
+ snprintf(text + i*3, sizeof(text) - i*3,
|
||
|
|
+ " %2.2x", opts[i]);
|
||
|
|
+ fatal("Connection from %.100s port %d with IP options:%.800s",
|
||
|
|
+ ssh_remote_ipaddr(ssh), ssh_remote_port(ssh), text);
|
||
|
|
+ }
|
||
|
|
+ } while (i < option_size);
|
||
|
|
}
|
||
|
|
#endif /* IP_OPTIONS */
|
||
|
|
}
|