OpenSSH（Open Secure Shell）是使用SSH透过计算机网络加密通讯的实现。它是取代由SSH Communications Security所提供的商用版本的开放源代码方案。目前OpenSSH是OpenBSD的子计划。 远程登录工具OpenSSH 6.6正式版发布。2014-03-16 上个版本是2014-01-30的6.5 修正了一些Bug及几个增强，去掉J-PAKE认证。 完全改进： Changes since OpenSSH 6.6 ========================= This is primarily a bugfix release. Security: * sshd(8): when using environment passing with a sshd_config(5) AcceptEnv pattern with a wildcard. OpenSSH prior to 6.6 could be tricked into accepting any enviornment variable that contains the characters before the wildcard character. New / changed features: * ssh(1), sshd(8): this release removes the J-PAKE authentication code. This code was experimental, never enabled and had been unmaintained for some time. * ssh(1): when processing Match blocks, skip 'exec' clauses other clauses predicates failed to match. * ssh(1): if hostname canonicalisation is enabled and results in the destination hostname being changed, then re-parse ssh_config(5) files using the new destination hostname. This gives 'Host' and 'Match' directives that use the expanded hostname a chance to be applied. Bugfixes: * ssh(1): avoid spurious "getsockname failed: Bad file descriptor" in ssh -W. bz#2200, debian#738692 * sshd(8): allow the shutdown(2) syscall in seccomp-bpf and systrace sandbox modes, as it is reachable if the connection is terminated during the pre-auth phase. * ssh(1), sshd(8): fix unsigned overflow that in SSH protocol 1 bignum parsing. Minimum key length checks render this bug unexploitable to compromise SSH 1 sessions. * sshd_config(5): clarify behaviour of a keyword that appears in multiple matching Match blocks. bz#2184 * ssh(1): avoid unnecessary hostname lookups when canonicalisation is disabled. bz#2205 * sshd(8): avoid sandbox violation crashes in GSSAPI code by caching the supported list of GSSAPI mechanism OIDs before entering the sandbox. bz#2107 * ssh(1): fix possible crashes in SOCKS4 parsing caused by assumption that the SOCKS username is nul-terminated. * ssh(1): fix regression for UsePrivilegedPort=yes when BindAddress is not specified. * ssh(1), sshd(8): fix memory leak in ECDSA signature verification. * ssh(1): fix matching of 'Host' directives in ssh_config(5) files to be case-insensitive again (regression in 6.5). Portable OpenSSH: * sshd(8): don't fatal if the FreeBSD Capsicum is offered by the system headers and libc but is not supported by the kernel. * Fix build using the HP-UX compiler. 下载：ftp://ftp.openbsd.com/pub/OpenBSD/OpenSSH/portable/openssh-6.6p1.tar.gz |
