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1openssh (1:7.1p1-2) UNRELEASED; urgency=medium
2
3 OpenSSH 7.0 disables several pieces of weak, legacy, and/or unsafe
4 cryptography.
5
6 * Support for the legacy SSH version 1 protocol is disabled by default at
7 compile time. Note that this also means that the Cipher keyword in
8 ssh_config(5) is effectively no longer usable; use Ciphers instead for
9 protocol 2. The openssh-client-ssh1 package includes "ssh1", "scp1",
10 and "ssh-keygen1" binaries which you can use if you have no alternative
11 way to connect to an outdated SSH1-only server; please contact the
12 server administrator or system vendor in such cases and ask them to
13 upgrade.
14 * Support for the 1024-bit diffie-hellman-group1-sha1 key exchange is
15 disabled by default at run-time. It may be re-enabled using the
16 instructions at http://www.openssh.com/legacy.html
17 * Support for ssh-dss, ssh-dss-cert-* host and user keys is disabled by
18 default at run-time. These may be re-enabled using the instructions at
19 http://www.openssh.com/legacy.html
20 * Support for the legacy v00 cert format has been removed.
21
22 Future releases will retire more legacy cryptography, including:
23
24 * Refusing all RSA keys smaller than 1024 bits (the current minimum is
25 768 bits).
26 * Several ciphers will be disabled by default: blowfish-cbc, cast128-cbc,
27 all arcfour variants, and the rijndael-cbc aliases for AES.
28 * MD5-based HMAC algorithms will be disabled by default.
29
30 -- Colin Watson <cjwatson@debian.org> Thu, 03 Dec 2015 17:59:08 +0000
31
32openssh (1:6.7p1-5) unstable; urgency=medium
33
34 openssh-server 1:6.7p1-4 changed the default setting of AcceptEnv to list
35 a number of specific LC_FOO variables rather than the wildcard LC_*. I
36 have since been persuaded that this was a bad idea and have reverted it,
37 but it is difficult to automatically undo the change to
38 /etc/ssh/sshd_config without compounding the problem (that of modifying
39 configuration that some users did not want to be modified) further. Most
40 users who upgraded via version 1:6.7p1-4 should restore the previous value
41 of "AcceptEnv LANG LC_*" in /etc/ssh/sshd_config.
42
43 -- Colin Watson <cjwatson@debian.org> Sun, 22 Mar 2015 23:09:32 +0000
44
45openssh (1:5.4p1-2) unstable; urgency=low
46
47 Smartcard support is now available using PKCS#11 tokens. If you were
48 previously using an unofficial build of Debian's OpenSSH package with
49 OpenSC-based smartcard support added, then note that commands like
50 'ssh-add -s 0' will no longer work; you need to use 'ssh-add -s
51 /usr/lib/opensc-pkcs11.so' instead.
52
53 -- Colin Watson <cjwatson@debian.org> Sat, 10 Apr 2010 01:08:59 +0100
54
55openssh (1:3.8.1p1-9) experimental; urgency=low
56
57 The ssh package has been split into openssh-client and openssh-server. If
58 you had previously requested that the sshd server should not be run, then
59 that request will still be honoured. However, the recommended approach is
60 now to remove the openssh-server package if you do not want to run sshd.
61 You can remove the old /etc/ssh/sshd_not_to_be_run marker file after doing
62 that.
63
64 -- Colin Watson <cjwatson@debian.org> Mon, 2 Aug 2004 20:48:54 +0100
65
66openssh (1:3.5p1-1) unstable; urgency=low
67
68 This version of OpenSSH disables the environment option for public keys by
69 default, in order to avoid certain attacks (for example, LD_PRELOAD). If
70 you are using this option in an authorized_keys file, beware that the keys
71 in question will no longer work until the option is removed.
72
73 To re-enable this option, set "PermitUserEnvironment yes" in
74 /etc/ssh/sshd_config after the upgrade is complete, taking note of the
75 warning in the sshd_config(5) manual page.
76
77 -- Colin Watson <cjwatson@debian.org> Sat, 26 Oct 2002 19:41:51 +0100
78
79openssh (1:3.0.1p1-1) unstable; urgency=high
80
81 As of version 3, OpenSSH no longer uses separate files for ssh1 and ssh2
82 keys. This means the authorized_keys2 and known_hosts2 files are no longer
83 needed. They will still be read in order to maintain backward
84 compatibility.
85
86 -- Matthew Vernon <matthew@debian.org> Thu, 28 Nov 2001 17:43:01 +0000