Age | Commit message (Collapse) | Author |
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This patch has been rejected upstream: "None of the OpenSSH developers are
in favour of adding this, and this situation has not changed for several
years. This is not a slight on Simon's patch, which is of fine quality, but
just that a) we don't trust GSSAPI implementations that much and b) we don't
like adding new KEX since they are pre-auth attack surface. This one is
particularly scary, since it requires hooks out to typically root-owned
system resources."
However, quite a lot of people rely on this in Debian, and it's better to
have it merged into the main openssh package rather than having separate
-krb5 packages (as we used to have). It seems to have a generally good
security history.
Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242
Last-Updated: 2018-08-24
Patch-Name: gssapi.patch
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OpenBSD-Commit-ID: 2b1f9619259e222bbd4fe9a8d3a0973eafb9dd8d
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OpenBSD-Commit-ID: 5df340c5965e822c9da21e19579d08dea3cbe429
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OpenBSD-Commit-ID: 60cb0356114acc7625ab85105f6f6a7cd44a8d05
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OpenBSD-Commit-ID: 9276951caf4daf555f6d262e95720e7f79244572
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environment variables for the remote session (subject to the server accepting
them)
refactor SendEnv to remove the arbitrary limit of variable names.
ok markus@
OpenBSD-Commit-ID: cfbb00d9b0e10c1ffff1d83424351fd961d1f2be
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after checking with codespell tool
(https://github.com/lucasdemarchi/codespell)
OpenBSD-Commit-ID: 373222f12d7ab606598a2d36840c60be93568528
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The signal handlers from the original ssh1 code on which OpenSSH
is based assume unreliable signals and reinstall their handlers.
Since OpenBSD (and pretty much every current system) has reliable
signals this is not needed. In the unlikely even that -portable
is still being used on such systems we will deal with it in the
compat layer. ok deraadt@
OpenBSD-Commit-ID: f53a1015cb6908431b92116130d285d71589612c
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Drop compatibility hacks for some ancient SSH
implementations, including ssh.com <=2.* and OpenSSH <= 3.*.
These versions were all released in or before 2001 and predate the
final SSH RFCs. The hacks in question aren't necessary for RFC-
compliant SSH implementations.
ok markus@
OpenBSD-Commit-ID: 4be81c67db57647f907f4e881fb9341448606138
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unbreak hostkey rotation; attempting to sign with a
desired signature algorithm of kex->hostkey_alg is incorrect when the key
type isn't capable of making those signatures. ok markus@
OpenBSD-Commit-ID: 35ae46864e1f5859831ec0d115ee5ea50953a906
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pass negotiated signing algorithm though to
sshkey_verify() and check that the negotiated algorithm matches the type in
the signature (only matters for RSA SHA1/SHA2 sigs). ok markus@
OpenBSD-Commit-ID: 735fb15bf4adc060d3bee9d047a4bcaaa81b1af9
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Remove get_current_time() and replace with calls to
monotime_double() which uses CLOCK_MONOTONIC and works over clock steps. "I
like" markus@
OpenBSD-Commit-ID: 3ad2f7d2414e2cfcaef99877a7a5b0baf2242952
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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
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fix use-after-free in ~^Z escape handler path, introduced
in channels.c refactor; spotted by millert@ "makes sense" deraadt@
Upstream-ID: 8fa2cdc65c23ad6420c1e59444b0c955b0589b22
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Make remote channel ID a u_int
Previously we tracked the remote channel IDs in an int, but this is
strictly incorrect: the wire protocol uses uint32 and there is nothing
in-principle stopping a SSH implementation from sending, say, 0xffff0000.
In practice everyone numbers their channels sequentially, so this has
never been a problem.
ok markus@
Upstream-ID: b9f4cd3dc53155b4a5c995c0adba7da760d03e73
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refactor channels.c
Move static state to a "struct ssh_channels" that is allocated at
runtime and tracked as a member of struct ssh.
Explicitly pass "struct ssh" to all channels functions.
Replace use of the legacy packet APIs in channels.c.
Rework sshd_config PermitOpen handling: previously the configuration
parser would call directly into the channels layer. After the refactor
this is not possible, as the channels structures are allocated at
connection time and aren't available when the configuration is parsed.
The server config parser now tracks PermitOpen itself and explicitly
configures the channels code later.
ok markus@
Upstream-ID: 11828f161656b965cc306576422613614bea2d8f
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pass packet state down to some of the channels function
(more to come...); ok markus@
Upstream-ID: d8ce7a94f4059d7ac1e01fb0eb01de0c4b36c81b
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Make ""Killed by signal 1" LogLevel verbose so it's not
shown at the default level. Prevents it from appearing during ssh -J and
equivalent ProxyCommand configs. bz#1906, bz#2744, feedback&ok markus@
Upstream-ID: debfaa7e859b272246c2f2633335d288d2e2ae28
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When using the escape sequence &~ the code path is
client_loop() -> client_simple_escape_filter() -> process_escapes() -> fork()
and the pledge for this path lacks the proc promise and therefore aborts the
process. The solution is to just add proc the promise to this specific
pledge.
Reported by Gregoire Jadi gjadi ! omecha.info
Insight with tb@, OK jca@
Upstream-ID: 63c05e30c28209519f476023b65b0b1b0387a05b
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Switch to recallocarray() for a few operations. Both
growth and shrinkage are handled safely, and there also is no need for
preallocation dances. Future changes in this area will be less error prone.
Review and one bug found by markus
Upstream-ID: 822d664d6a5a1d10eccb23acdd53578a679d5065
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remove now obsolete ctx from ssh_dispatch_run; ok djm@
Upstream-ID: 9870aabf7f4d71660c31fda91b942b19a8e68d29
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protocol handlers all get struct ssh passed; ok djm@
Upstream-ID: 0ca9ea2a5d01a6d2ded94c5024456a930c5bfb5d
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remove miscellaneous SSH1 leftovers; ok markus@
Upstream-ID: af23696022ae4d45a1abc2fb8b490d8d9dd63b7c
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obliterate ssh1.h and some dead code that used it
ok markus@
Upstream-ID: 1ca9159a9fb95618f9d51e069ac8e1131a087343
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remove SSHv1-related buffers from client code
Upstream-ID: dca5d01108f891861ceaf7ba1c0f2eb274e0c7dd
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remove KEY_RSA1
ok markus@
Upstream-ID: 7408517b077c892a86b581e19f82a163069bf133
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remove compat20/compat13/compat15 variables
ok markus@
Upstream-ID: 43802c035ceb3fef6c50c400e4ecabf12354691c
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When updating hostkeys, accept RSA keys if
HostkeyAlgorithms contains any RSA keytype. Previously, ssh could ignore RSA
keys when any of the ssh-rsa-sha2-* methods was enabled in HostkeyAlgorithms
nit ssh-rsa (SHA1 signatures) was not. bz#2650 reported by Luis Ressel; ok
dtucker@
Upstream-ID: c5e8cfee15c42f4a05d126158a0766ea06da79d2
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Fix typo in ~C error message for bad port forward
cancellation. bz#2672, from Brad Marshall via Colin Watson and Ubuntu's
bugtracker.
Upstream-ID: 0d4a7e5ead6cc59c9a44b4c1e5435ab3aada09af
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ssh proxy mux mode (-O proxy; idea from Simon Tatham): - mux
client speaks the ssh-packet protocol directly over unix-domain socket. - mux
server acts as a proxy, translates channel IDs and relays to the server. - no
filedescriptor passing necessary. - combined with unix-domain forwarding it's
even possible to run mux client and server on different machines. feedback
& ok djm@
Upstream-ID: 666a2fb79f58e5c50e246265fb2b9251e505c25b
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replace two arc4random loops with arc4random_buf ok
deraadt natano
Upstream-ID: e18ede972d1737df54b49f011fa4f3917a403f48
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Add MAXIMUM(), MINIMUM(), and ROUNDUP() to misc.h, then
use those definitions rather than pulling <sys/param.h> and unknown namespace
pollution. ok djm markus dtucker
Upstream-ID: 712cafa816c9f012a61628b66b9fbd5687223fb8
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fix pledge violation with ssh -f; reported by Valentin
Kozamernik ok dtucker@
Upstream-ID: a61db7988db88d9dac3c4dd70e18876a8edf84aa
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Add missing "recvfd" pledge promise: Raf Czlonka reported
ssh coredumps when Control* keywords were set in ssh_config. This patch also
fixes similar problems with scp and sftp.
ok deraadt, looks good to millert
Upstream-ID: ca2099eade1ef3e87a79614fefa26a0297ad8a3b
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refactor activation of rekeying
This makes automatic rekeying internal to the packet code (previously
the server and client loops needed to assist). In doing to it makes
application of rekey limits more accurate by accounting for packets
about to be sent as well as packets queued during rekeying events
themselves.
Based on a patch from dtucker@ which was in turn based on a patch
Aleksander Adamowski in bz#2521; ok markus@
Upstream-ID: a441227fd64f9739850ca97b4cf794202860fcd8
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Avoid ugly "DISPLAY "(null)" invalid; disabling X11
forwarding" message when DISPLAY is not set. This could also result in a
crash on systems with a printf that doesn't handle NULL. OK djm@
Upstream-ID: 20ee0cfbda678a247264c20ed75362042b90b412
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Remove leftover roaming dead code. ok djm markus.
Upstream-ID: 13d1f9c8b65a5109756bcfd3b74df949d53615be
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Zero a stack buffer with explicit_bzero() instead of
memset() when returning from client_loop() for consistency with
buffer_free()/sshbuf_free().
ok dtucker@ deraadt@ djm@
Upstream-ID: bc9975b2095339811c3b954694d7d15ea5c58f66
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remove roaming support; ok djm@
Upstream-ID: 2cab8f4b197bc95776fb1c8dc2859dad0c64dc56
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eliminate fallback from untrusted X11 forwarding to trusted
forwarding when the X server disables the SECURITY extension; Reported by
Thomas Hoger; ok deraadt@
Upstream-ID: f76195bd2064615a63ef9674a0e4096b0713f938
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adjust pledge promises for ControlMaster: when using
"ask" or "autoask", the process will use ssh-askpass for asking confirmation.
problem found by halex@
ok halex@
Upstream-ID: 38a58b30ae3eef85051c74d3c247216ec0735f80
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pledges ssh client: - mux client: which is used when
ControlMaster is in use. will end with "stdio proc tty" (proc is to
permit sending SIGWINCH to mux master on window resize)
- client loop: several levels of pledging depending of your used options
ok deraadt@
Upstream-ID: 21676155a700e51f2ce911e33538e92a2cd1d94b
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Replace a function-local allocation with stack memory.
ok djm@
Upstream-ID: c09fbbab637053a2ab9f33ca142b4e20a4c5a17e
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Turn off DSA by default; add HostKeyAlgorithms to the
server and PubkeyAcceptedKeyTypes to the client side, so it still can be
tested or turned back on; feedback and ok djm@
Upstream-ID: 8450a9e6d83f80c9bfed864ff061dfc9323cec21
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better refuse ForwardX11Trusted=no connections attempted
after ForwardX11Timeout expires; reported by Jann Horn
Upstream-ID: bf0fddadc1b46a0334e26c080038313b4b6dea21
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Remove pattern length argument from match_pattern_list(), we
only ever use it for strlen(pattern).
Prompted by hanno AT hboeck.de pointing an out-of-bound read
error caused by an incorrect pattern length found using AFL
and his own tools.
ok markus@
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fix small memory leak when UpdateHostkeys=no
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fix setting/clearing of TTY raw mode around
UpdateHostKeys=ask confirmation question; reported by Herb Goldman
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UpdateHostKeys fixes:
I accidentally changed the format of the hostkeys@openssh.com messages
last week without changing the extension name, and this has been causing
connection failures for people who are running -current. First reported
by sthen@
s/hostkeys@openssh.com/hostkeys-00@openssh.com/
Change the name of the proof message too, and reorder it a little.
Also, UpdateHostKeys=ask is incompatible with ControlPersist (no TTY
available to read the response) so disable UpdateHostKeys if it is in
ask mode and ControlPersist is active (and document this)
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