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| author | djm@openbsd.org <djm@openbsd.org> | 2024-04-30 05:53:03 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2024-04-30 15:53:26 +1000 |
| commit | 2e69a724051488e3fb3cd11531c4b5bc1764945b (patch) | |
| tree | 3d106477cec4db155dd54d7464ae2fe9e4f13289 | |
| parent | da757b022bf18c6f7d04e685a10cd96ed00f83da (diff) | |
| download | openssh-2e69a724051488e3fb3cd11531c4b5bc1764945b.tar.gz | |
upstream: stricter validation of messaging socket fd number; disallow
usage of stderr. Based on GHPR492 by RealHurrison
OpenBSD-Commit-ID: 73dbbe82ea16f73ce1d044d3232bc869ae2f2ce8
| -rw-r--r-- | ssh-keysign.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ssh-keysign.c b/ssh-keysign.c index c54a4bbb7..968344e79 100644 --- a/ssh-keysign.c +++ b/ssh-keysign.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh-keysign.c,v 1.73 2024/01/11 01:51:16 djm Exp $ */ +/* $OpenBSD: ssh-keysign.c,v 1.74 2024/04/30 05:53:03 djm Exp $ */ /* * Copyright (c) 2002 Markus Friedl. All rights reserved. * @@ -268,7 +268,7 @@ main(int argc, char **argv) __progname, rver, version); if ((r = sshbuf_get_u32(b, (u_int *)&fd)) != 0) fatal_r(r, "%s: buffer error", __progname); - if (fd < 0 || fd == STDIN_FILENO || fd == STDOUT_FILENO) + if (fd <= STDERR_FILENO) fatal("%s: bad fd = %d", __progname, fd); if ((host = get_local_name(fd)) == NULL) fatal("%s: cannot get local name for fd", __progname); |