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openssh/openssh-7.2p2-remove_xauth_cookies_on_exit.patch
Petr Cerny 6c861e0b33 Accepting request 433779 from home:pcerny:factory
- remaining patches that were still missing
  since the update to 7.2p2 (FATE#319675):
  [openssh-7.2p2-disable_openssl_abi_check.patch]
- fix forwarding with IPv6 addresses in DISPLAY (bnc#847710)
  [openssh-7.2p2-IPv6_X_forwarding.patch]
- ignore PAM environment when using login
  (bsc#975865, CVE-2015-8325)
  [openssh-7.2p2-ignore_PAM_with_UseLogin.patch]
- limit accepted password length (prevents possible DoS)
  (bsc#992533, CVE-2016-6515)
  [openssh-7.2p2-limit_password_length.patch]
- Prevent user enumeration through the timing of password
  processing (bsc#989363, CVE-2016-6210)
  [openssh-7.2p2-prevent_timing_user_enumeration.patch]
- Add auditing for PRNG re-seeding
  [openssh-7.2p2-audit_seed_prng.patch]

OBS-URL: https://build.opensuse.org/request/show/433779
OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=113
2016-10-07 15:57:29 +00:00

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1.4 KiB
Diff

# HG changeset patch
# Parent 18c2690afd988b9cb0fd0fa927d02cf5336dce9c
# --used to be called '-xauth'
try to remove xauth cookies on logout
bnc#98815
diff --git a/openssh-7.2p2/session.c b/openssh-7.2p2/session.c
--- a/openssh-7.2p2/session.c
+++ b/openssh-7.2p2/session.c
@@ -2540,16 +2540,44 @@ session_close(Session *s)
u_int i;
verbose("Close session: user %s from %.200s port %d id %d",
s->pw->pw_name,
get_remote_ipaddr(),
get_remote_port(),
s->self);
+ if ((s->display != NULL) && (s->auth_proto != NULL) &&
+ (s->auth_data != NULL) && (options.xauth_location != NULL)) {
+ pid_t pid;
+ FILE *f;
+ char cmd[1024];
+ struct passwd * pw = s->pw;
+
+ if (!(pid = fork())) {
+ permanently_set_uid(pw);
+
+ /* Remove authority data from .Xauthority if appropriate. */
+ debug("Running %.500s remove %.100s\n",
+ options.xauth_location, s->auth_display);
+
+ snprintf(cmd, sizeof cmd, "unset XAUTHORITY && HOME=\"%.200s\" %s -q -",
+ s->pw->pw_dir, options.xauth_location);
+ f = popen(cmd, "w");
+ if (f) {
+ fprintf(f, "remove %s\n", s->auth_display);
+ pclose(f);
+ } else
+ error("Could not run %s\n", cmd);
+ exit(0);
+ } else if (pid > 0) {
+ waitpid(pid, NULL, 0);
+ }
+ }
+
if (s->ttyfd != -1)
session_pty_cleanup(s);
free(s->term);
free(s->display);
free(s->x11_chanids);
free(s->auth_display);
free(s->auth_data);
free(s->auth_proto);