Bugzilla – Attachment 3507 Details for
Bug 3279
UpdateHostKeys triggers "client_global_hostkeys_private_confirm: server gave bad signature for RSA key 0" error message
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[patch]
use old-style RSA signature algorithm for SSH_BUG_SIGTYPE servers
bz3279.diff (text/plain), 587 bytes, created by
Damien Miller
on 2021-05-03 12:03:47 AEST
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Description:
use old-style RSA signature algorithm for SSH_BUG_SIGTYPE servers
Filename:
MIME Type:
Creator:
Damien Miller
Created:
2021-05-03 12:03:47 AEST
Size:
587 bytes
patch
obsolete
>diff --git a/clientloop.c b/clientloop.c >index ec60a62..4d7e93b 100644 >--- a/clientloop.c >+++ b/clientloop.c >@@ -2139,7 +2139,8 @@ client_global_hostkeys_private_confirm(struct ssh *ssh, int type, > * during KEX to the default (SHA1). > */ > use_kexsigtype = kexsigtype == KEY_RSA && >- sshkey_type_plain(ctx->keys[i]->type) == KEY_RSA; >+ sshkey_type_plain(ctx->keys[i]->type) == KEY_RSA && >+ !(ssh->compat & SSH_BUG_SIGTYPE); > debug3_f("verify %s key %zu using %s sigalg", > sshkey_type(ctx->keys[i]), i, > use_kexsigtype ? ssh->kex->hostkey_alg : NULL);
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