openssh/openssh-6.6p1-host_ident.patch

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# identify hashed hosts in known_hosts and suggest command line for their
# removal
Accepting request 230097 from home:pcerny:factory - Update of the underlying OpenSSH to 6.6p1 - update to 6.6p1 Security: * sshd(8): when using environment passing with a sshd_config(5) AcceptEnv pattern with a wildcard. OpenSSH prior to 6.6 could be tricked into accepting any enviornment variable that contains the characters before the wildcard character. Features since 6.5p1: * ssh(1), sshd(8): removal of the J-PAKE authentication code, which was experimental, never enabled and has been unmaintained for some time. * ssh(1): skip 'exec' clauses other clauses predicates failed to match while processing Match blocks. * ssh(1): if hostname canonicalisation is enabled and results in the destination hostname being changed, then re-parse ssh_config(5) files using the new destination hostname. This gives 'Host' and 'Match' directives that use the expanded hostname a chance to be applied. Bugfixes: * ssh(1): avoid spurious "getsockname failed: Bad file descriptor" in ssh -W. bz#2200, debian#738692 * sshd(8): allow the shutdown(2) syscall in seccomp-bpf and systrace sandbox modes, as it is reachable if the connection is terminated during the pre-auth phase. * ssh(1), sshd(8): fix unsigned overflow that in SSH protocol 1 bignum parsing. Minimum key length checks render this bug unexploitable to compromise SSH 1 sessions. * sshd_config(5): clarify behaviour of a keyword that appears in multiple matching Match blocks. bz#2184 OBS-URL: https://build.opensuse.org/request/show/230097 OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=76
2014-04-14 23:53:01 +02:00
diff --git a/openssh-6.6p1/sshconnect.c b/openssh-6.6p1/sshconnect.c
--- a/openssh-6.6p1/sshconnect.c
+++ b/openssh-6.6p1/sshconnect.c
@@ -1070,16 +1070,21 @@ check_host_key(char *hostname, struct so
ip_found->file, ip_found->line);
}
/* The host key has changed. */
warn_changed_key(host_key);
error("Add correct host key in %.100s to get rid of this message.",
user_hostfiles[0]);
error("Offending %s key in %s:%lu", key_type(host_found->key),
host_found->file, host_found->line);
+ error("You can use following command to remove all keys for this IP:");
+ if (host_found->file)
+ error("ssh-keygen -R %s -f %s", hostname, host_found->file);
+ else
+ error("ssh-keygen -R %s", hostname);
/*
* If strict host key checking is in use, the user will have
* to edit the key manually and we can only abort.
*/
if (options.strict_host_key_checking) {
error("%s host key for %.200s has changed and you have "
"requested strict checking.", type, host);