From 85bdcd7c92fe7ff133bbc4e10a65c91810f88755 Mon Sep 17 00:00:00 2001 From: Damien Miller Date: Wed, 13 Apr 2016 10:39:57 +1000 Subject: [PATCH] ignore PAM environment vars when UseLogin=yes If PAM is configured to read user-specified environment variables and UseLogin=yes in sshd_config, then a hostile local user may attack /bin/login via LD_PRELOAD or similar environment variables set via PAM. CVE-2015-8325, found by Shayan Sadigh, via Colin Watson Upstream-Status: Backport CVE: CVE-2015-8325 Signed-off-by: Armin Kuster --- session.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: openssh-7.1p2/session.c =================================================================== --- openssh-7.1p2.orig/session.c +++ openssh-7.1p2/session.c @@ -1315,7 +1315,7 @@ do_setup_env(Session *s, const char *she * Pull in any environment variables that may have * been set by PAM. */ - if (options.use_pam) { + if (options.use_pam && !options.use_login) { char **p; p = fetch_pam_child_environment();