Antonio Larrosa
da2c6cc517
* No changes for askpass, see main package changelog for
details.
- Fix a dbus connection leaked in the logind patch that was
missing a sd_bus_unref call (found by Matthias Gerstner):
* logind_set_tty.patch
- Add a patch that fixes a small memory leak when parsing the
subsystem configuration option:
* fix-memleak-in-process_server_config_line_depth.patch
- Update to openssh 9.8p1:
= Security
* 1) Race condition in sshd(8) (bsc#1226642, CVE-2024-6387).
A critical vulnerability in sshd(8) was present in Portable
OpenSSH versions between 8.5p1 and 9.7p1 (inclusive) that may
allow arbitrary code execution with root privileges.
Successful exploitation has been demonstrated on 32-bit
Linux/glibc systems with ASLR. Under lab conditions, the attack
requires on average 6-8 hours of continuous connections up to
the maximum the server will accept. Exploitation on 64-bit
systems is believed to be possible but has not been
demonstrated at this time. It's likely that these attacks will
be improved upon.
Exploitation on non-glibc systems is conceivable but has not
been examined. Systems that lack ASLR or users of downstream
Linux distributions that have modified OpenSSH to disable
per-connection ASLR re-randomisation (yes - this is a thing, no
- we don't understand why) may potentially have an easier path
to exploitation. OpenBSD is not vulnerable.
OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=272
84 lines
2.5 KiB
Diff
84 lines
2.5 KiB
Diff
# HG changeset patch
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# Parent 5e19a205fa03584bb0d829ecbba7495ce1899b65
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# -- uset do be called '-xauthlocalhostname'
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handle hostname changes when forwarding X
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Index: openssh-8.8p1/session.c
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===================================================================
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--- openssh-8.8p1.orig/session.c
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+++ openssh-8.8p1/session.c
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@@ -981,7 +981,7 @@ copy_environment(char **source, char ***
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#endif
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static char **
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-do_setup_env(struct ssh *ssh, Session *s, const char *shell)
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+do_setup_env(struct ssh *ssh, Session *s, const char *shell, int *env_size)
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{
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char buf[256];
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size_t n;
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@@ -1191,6 +1191,8 @@ do_setup_env(struct ssh *ssh, Session *s
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for (i = 0; env[i]; i++)
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fprintf(stderr, " %.200s\n", env[i]);
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}
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+
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+ *env_size = envsize;
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return env;
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}
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@@ -1199,7 +1201,7 @@ do_setup_env(struct ssh *ssh, Session *s
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* first in this order).
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*/
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static void
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-do_rc_files(struct ssh *ssh, Session *s, const char *shell)
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+do_rc_files(struct ssh *ssh, Session *s, const char *shell, char **env, int *env_size)
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{
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FILE *f = NULL;
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char *cmd = NULL, *user_rc = NULL;
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@@ -1256,12 +1258,20 @@ do_rc_files(struct ssh *ssh, Session *s,
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fatal_f("xasprintf: %s", strerror(errno));
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f = popen(cmd, "w");
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if (f) {
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+ char hostname[MAXHOSTNAMELEN];
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+
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fprintf(f, "remove %s\n",
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s->auth_display);
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fprintf(f, "add %s %s %s\n",
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s->auth_display, s->auth_proto,
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s->auth_data);
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pclose(f);
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+ if (gethostname(hostname,sizeof(hostname)) >= 0)
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+ child_set_env(&env,env_size,"XAUTHLOCALHOSTNAME",
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+ hostname);
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+ else
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+ debug("Cannot set up XAUTHLOCALHOSTNAME %s\n",
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+ strerror(errno));
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} else {
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fprintf(stderr, "Could not run %s\n",
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cmd);
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@@ -1518,6 +1528,7 @@ do_child(struct ssh *ssh, Session *s, co
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char **env, *argv[ARGV_MAX], remote_id[512];
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const char *shell, *shell0;
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struct passwd *pw = s->pw;
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+ int env_size;
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int r = 0;
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sshpkt_fmt_connection_id(ssh, remote_id, sizeof(remote_id));
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@@ -1574,7 +1585,7 @@ do_child(struct ssh *ssh, Session *s, co
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* Make sure $SHELL points to the shell from the password file,
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* even if shell is overridden from login.conf
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*/
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- env = do_setup_env(ssh, s, shell);
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+ env = do_setup_env(ssh, s, shell, &env_size);
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#ifdef HAVE_LOGIN_CAP
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shell = login_getcapstr(lc, "shell", (char *)shell, (char *)shell);
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@@ -1638,7 +1649,7 @@ do_child(struct ssh *ssh, Session *s, co
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closefrom(STDERR_FILENO + 1);
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- do_rc_files(ssh, s, shell);
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+ do_rc_files(ssh, s, shell, env, &env_size);
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/* restore SIGPIPE for child */
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ssh_signal(SIGPIPE, SIG_DFL);
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