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@@ -1,90 +0,0 @@
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-From e74dd1d96753b0538192143adf58d04fcd3b242b Mon Sep 17 00:00:00 2001
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-From: Matthias Gerstner <mgerstner@suse.de>
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-Date: Fri, 14 Aug 2020 22:14:36 -0700
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-Subject: [PATCH] Correct multiple security issues that are present if the tcsd
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- is started by root instead of the tss user.
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-
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-Patch fixes the following 3 CVEs:
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-
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-CVE-2020-24332
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-If the tcsd daemon is started with root privileges,
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-the creation of the system.data file is prone to symlink attacks
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-
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-CVE-2020-24330
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-If the tcsd daemon is started with root privileges,
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-it fails to drop the root gid after it is no longer needed
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-
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-CVE-2020-24331
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-If the tcsd daemon is started with root privileges,
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-the tss user has read and write access to the /etc/tcsd.conf file
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-
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-Authored-by: Matthias Gerstner <mgerstner@suse.de>
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-Signed-off-by: Debora Velarde Babb <debora@linux.ibm.com>
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-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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----
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- src/tcs/ps/tcsps.c | 2 +-
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- src/tcsd/svrside.c | 1 +
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- src/tcsd/tcsd_conf.c | 10 +++++-----
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- 3 files changed, 7 insertions(+), 6 deletions(-)
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-
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-diff --git a/src/tcs/ps/tcsps.c b/src/tcs/ps/tcsps.c
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-index e47154b..85d45a9 100644
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---- a/src/tcs/ps/tcsps.c
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-+++ b/src/tcs/ps/tcsps.c
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-@@ -72,7 +72,7 @@ get_file()
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- }
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-
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- /* open and lock the file */
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-- system_ps_fd = open(tcsd_options.system_ps_file, O_CREAT|O_RDWR, 0600);
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-+ system_ps_fd = open(tcsd_options.system_ps_file, O_CREAT|O_RDWR|O_NOFOLLOW, 0600);
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- if (system_ps_fd < 0) {
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- LogError("system PS: open() of %s failed: %s",
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- tcsd_options.system_ps_file, strerror(errno));
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-diff --git a/src/tcsd/svrside.c b/src/tcsd/svrside.c
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-index 1ae1636..1c12ff3 100644
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---- a/src/tcsd/svrside.c
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-+++ b/src/tcsd/svrside.c
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-@@ -473,6 +473,7 @@ main(int argc, char **argv)
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- }
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- return TCSERR(TSS_E_INTERNAL_ERROR);
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- }
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-+ setgid(pwd->pw_gid);
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- setuid(pwd->pw_uid);
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- #endif
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- #endif
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-diff --git a/src/tcsd/tcsd_conf.c b/src/tcsd/tcsd_conf.c
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-index a31503d..ea8ea13 100644
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---- a/src/tcsd/tcsd_conf.c
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-+++ b/src/tcsd/tcsd_conf.c
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-@@ -743,7 +743,7 @@ conf_file_init(struct tcsd_config *conf)
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- #ifndef SOLARIS
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- struct group *grp;
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- struct passwd *pw;
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-- mode_t mode = (S_IRUSR|S_IWUSR);
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-+ mode_t mode = (S_IRUSR|S_IWUSR|S_IRGRP);
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- #endif /* SOLARIS */
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- TSS_RESULT result;
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-
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-@@ -798,15 +798,15 @@ conf_file_init(struct tcsd_config *conf)
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- }
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-
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- /* make sure user/group TSS owns the conf file */
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-- if (pw->pw_uid != stat_buf.st_uid || grp->gr_gid != stat_buf.st_gid) {
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-+ if (stat_buf.st_uid != 0 || grp->gr_gid != stat_buf.st_gid) {
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- LogError("TCSD config file (%s) must be user/group %s/%s", tcsd_config_file,
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-- TSS_USER_NAME, TSS_GROUP_NAME);
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-+ "root", TSS_GROUP_NAME);
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- return TCSERR(TSS_E_INTERNAL_ERROR);
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- }
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-
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-- /* make sure only the tss user can manipulate the config file */
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-+ /* make sure only the tss user can read (but not manipulate) the config file */
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- if (((stat_buf.st_mode & 0777) ^ mode) != 0) {
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-- LogError("TCSD config file (%s) must be mode 0600", tcsd_config_file);
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-+ LogError("TCSD config file (%s) must be mode 0640", tcsd_config_file);
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- return TCSERR(TSS_E_INTERNAL_ERROR);
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- }
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- #endif /* SOLARIS */
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---
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-2.20.1
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-
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Fabrice Fontaine