The configure script checks for getpagesize() and sets HAVE_GETPAGESIZE in
config.h, but bsd-getpagesize.c forgot to include includes.h (which
indirectly includes config.h) so the checks always fails, causing linker
issues when linking statically on systems with getpagesize().
Patch from Peter Korsgaard <peter at korsgaard.com>
Expose devices allocated for tun/tap forwarding.
At the client, the device may be obtained from a new %T expansion
for LocalCommand.
At the server, the allocated devices will be listed in a
SSH_TUNNEL variable exposed to the environment of any user sessions
started after the tunnel forwarding was established.
ok markus
Upstream-ID: e61e53f8ae80566e9ddc0d67a5df5bdf2f3c9f9e
On some platforms (AIX, maybe others) allocating zero bytes of memory
via the various *alloc functions returns NULL, which is permitted
by the standards. Autoconf has some macros for detecting this (with
the exception of calloc for some reason) so use these and if necessary
activate shims for them. ok djm@
This fixes a few problems in the tun forwarding code, mostly to do
with host/network byte order confusion.
Based on a report and patch by stepe AT centaurus.uberspace.de;
bz#2735; ok dtucker@
Fix overly-conservative overflow checks on mulitplications and add checks
on additions. This allows scan_scaled to work up to +/-LLONG_MAX (LLONG_MIN
will still be flagged as a range error). ok millert@
revision 1.13
date: 2017/03/11 23:37:23; author: djm; state: Exp; lines: +14 -1; commitid: jnFKyHkB3CEiEZ2R;
fix signed integer overflow in scan_scaled. Found by Nicolas Iooss
using AFL against ssh_config. ok deraadt@ millert@
----------------------------
revision 1.12
date: 2013/11/29 19:00:51; author: deraadt; state: Exp; lines: +6 -5;
fairly simple unsigned char casts for ctype
ok krw
----------------------------
revision 1.11
date: 2012/11/12 14:07:20; author: halex; state: Exp; lines: +4 -2;
make scan_scaled set errno to EINVAL rather than ERANGE if it encounters
an invalid multiplier, like the man page says it should
"looks sensible" deraadt@, ok ian@
----------------------------
revision 1.10
date: 2009/06/20 15:00:04; author: martynas; state: Exp; lines: +4 -4;
use llabs instead of the home-grown version; and some comment changes
ok ian@, millert@
----------------------------
getdefaultproj() returns a pointer so test it for NULL inequality
instead of >0. Fixes compiler warning and is more correct. Patch from
David Binderman.
Author: miller@openbsd.org:
Avoid generate SIGTTOU when restoring the terminal mode. If we get
SIGTTOU it means the process is not in the foreground process group
which, in most cases, means that the shell has taken control of the tty.
Requiring the user the fg the process in this case doesn't make sense
and can result in both SIGTSTP and SIGTTOU being sent which can lead to
the process being suspended again immediately after being brought into
the foreground.
revision 1.23
date: 2010/05/14 13:30:34; author: millert; state: Exp; lines: +41 -39;
Defer installing signal handlers until echo is disabled so that we
get suspended normally when not the foreground process. Fix potential
infinite loop when restoring terminal settings if process is in the
background when restore occurs. OK miod@
Our explicit_bzero successfully confused clang -fsanitize-memory
in to thinking that memset is never called to initialise memory.
Ensure that it is called in a way that the compiler recognises.
If the root account is locked (eg password "!!" or "*LK*") keep looking
until we find a user with a valid salt to use for crypting passwords of
invalid users. ok djm@
Some AIX compilers unconditionally undefine va_copy but don't set it back
to an internal function, causing link errors. In some compat code we
already use VA_COPY instead so move the two existing instances into the
shared header and use for sshbuf-getput-basic.c too. Should fix building
with at lease some versions of AIX's compiler. bz#2589, ok djm@
When sshd is processing a non-PAM login for a non-existent user it uses
the string from the fakepw structure as the salt for crypt(3)ing the
password supplied by the client. That string has a Blowfish prefix, so on
systems that don't understand that crypt will fail fast due to an invalid
salt, and even on those that do it may have significantly different timing
from the hash methods used for real accounts (eg sha512). This allows
user enumeration by, eg, sending large password strings. This was noted
by EddieEzra.Harari at verint.com (CVE-2016-6210).
To mitigate, use the same hash algorithm that root uses for hashing
passwords for users that do not exist on the system. ok djm@
Darren Tucker
Damien Miller
djm@openbsd.org