basebuilder_pel7x64builder0
4 years ago
3 changed files with 196 additions and 1 deletions
@ -0,0 +1,154 @@
@@ -0,0 +1,154 @@
|
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From 4b6de608c25a6ffbdb507be958e12f814b43077c Mon Sep 17 00:00:00 2001 |
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From: "Todd C. Miller" <Todd.Miller@sudo.ws> |
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Date: Wed, 4 Dec 2019 12:38:22 -0700 |
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Subject: [PATCH] Only update the time stamp entry after the approval function |
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has succeeded. Bug #910 |
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--- |
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plugins/sudoers/check.c | 59 +++++++++++++++++++---------------------- |
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1 file changed, 27 insertions(+), 32 deletions(-) |
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diff --git a/plugins/sudoers/check.c b/plugins/sudoers/check.c |
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index db8e05161..ea1d89085 100644 |
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--- a/plugins/sudoers/check.c |
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+++ b/plugins/sudoers/check.c |
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@@ -51,6 +51,7 @@ static bool display_lecture(int); |
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static struct passwd *get_authpw(int); |
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|
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struct getpass_closure { |
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+ int tstat; |
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void *cookie; |
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struct passwd *auth_pw; |
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}; |
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@@ -89,27 +90,20 @@ getpass_resume(int signo, void *vclosure) |
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* or -1 on fatal error. |
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*/ |
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static int |
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-check_user_interactive(int validated, int mode, struct passwd *auth_pw) |
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+check_user_interactive(int validated, int mode, struct getpass_closure *closure) |
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{ |
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struct sudo_conv_callback cb, *callback = NULL; |
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- struct getpass_closure closure; |
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- int status = TS_ERROR; |
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int ret = -1; |
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char *prompt; |
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bool lectured; |
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debug_decl(check_user_interactive, SUDOERS_DEBUG_AUTH) |
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- /* Setup closure for getpass_{suspend,resume} */ |
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- closure.auth_pw = auth_pw; |
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- closure.cookie = NULL; |
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- sudo_pw_addref(closure.auth_pw); |
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- |
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/* Open, lock and read time stamp file if we are using it. */ |
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if (!ISSET(mode, MODE_IGNORE_TICKET)) { |
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/* Open time stamp file and check its status. */ |
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- closure.cookie = timestamp_open(user_name, user_sid); |
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- if (timestamp_lock(closure.cookie, closure.auth_pw)) |
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- status = timestamp_status(closure.cookie, closure.auth_pw); |
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+ closure->cookie = timestamp_open(user_name, user_sid); |
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+ if (timestamp_lock(closure->cookie, closure->auth_pw)) |
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+ closure->tstat = timestamp_status(closure->cookie, closure->auth_pw); |
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|
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/* Construct callback for getpass function. */ |
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memset(&cb, 0, sizeof(cb)); |
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@@ -120,7 +114,7 @@ check_user_interactive(int validated, int mode, struct passwd *auth_pw) |
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callback = &cb; |
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} |
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|
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- switch (status) { |
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+ switch (closure->tstat) { |
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case TS_FATAL: |
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/* Fatal error (usually setuid failure), unsafe to proceed. */ |
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goto done; |
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@@ -144,32 +138,22 @@ check_user_interactive(int validated, int mode, struct passwd *auth_pw) |
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} |
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/* XXX - should not lecture if askpass helper is being used. */ |
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- lectured = display_lecture(status); |
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+ lectured = display_lecture(closure->tstat); |
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|
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/* Expand any escapes in the prompt. */ |
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prompt = expand_prompt(user_prompt ? user_prompt : def_passprompt, |
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- closure.auth_pw->pw_name); |
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+ closure->auth_pw->pw_name); |
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if (prompt == NULL) |
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goto done; |
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- ret = verify_user(closure.auth_pw, prompt, validated, callback); |
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+ ret = verify_user(closure->auth_pw, prompt, validated, callback); |
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if (ret == true && lectured) |
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(void)set_lectured(); /* lecture error not fatal */ |
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free(prompt); |
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break; |
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} |
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- /* |
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- * Only update time stamp if user was validated. |
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- * Failure to update the time stamp is not a fatal error. |
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- */ |
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- if (ret == true && ISSET(validated, VALIDATE_SUCCESS) && status != TS_ERROR) |
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- (void)timestamp_update(closure.cookie, closure.auth_pw); |
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done: |
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- if (closure.cookie != NULL) |
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- timestamp_close(closure.cookie); |
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- sudo_pw_delref(closure.auth_pw); |
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- |
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debug_return_int(ret); |
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} |
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@@ -180,7 +164,7 @@ done: |
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int |
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check_user(int validated, int mode) |
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{ |
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- struct passwd *auth_pw; |
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+ struct getpass_closure closure = { TS_ERROR }; |
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int ret = -1; |
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bool exempt = false; |
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debug_decl(check_user, SUDOERS_DEBUG_AUTH) |
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@@ -189,9 +173,9 @@ check_user(int validated, int mode) |
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* Init authentication system regardless of whether we need a password. |
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* Required for proper PAM session support. |
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*/ |
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- if ((auth_pw = get_authpw(mode)) == NULL) |
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+ if ((closure.auth_pw = get_authpw(mode)) == NULL) |
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goto done; |
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- if (sudo_auth_init(auth_pw) == -1) |
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+ if (sudo_auth_init(closure.auth_pw) == -1) |
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goto done; |
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/* |
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@@ -222,15 +206,26 @@ check_user(int validated, int mode) |
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} |
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} |
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- ret = check_user_interactive(validated, mode, auth_pw); |
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+ ret = check_user_interactive(validated, mode, &closure); |
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done: |
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if (ret == true) { |
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/* The approval function may disallow a user post-authentication. */ |
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- ret = sudo_auth_approval(auth_pw, validated, exempt); |
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+ ret = sudo_auth_approval(closure.auth_pw, validated, exempt); |
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+ |
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+ /* |
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+ * Only update time stamp if user validated and was approved. |
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+ * Failure to update the time stamp is not a fatal error. |
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+ */ |
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+ if (ret == true && closure.tstat != TS_ERROR) { |
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+ if (ISSET(validated, VALIDATE_SUCCESS)) |
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+ (void)timestamp_update(closure.cookie, closure.auth_pw); |
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+ } |
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} |
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- sudo_auth_cleanup(auth_pw); |
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- sudo_pw_delref(auth_pw); |
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+ timestamp_close(closure.cookie); |
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+ sudo_auth_cleanup(closure.auth_pw); |
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+ if (closure.auth_pw != NULL) |
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+ sudo_pw_delref(closure.auth_pw); |
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debug_return_int(ret); |
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} |
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-- |
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2.25.1 |
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@ -0,0 +1,29 @@
@@ -0,0 +1,29 @@
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From 5472b1751645f750e42a0ba6daac667983b1a56c Mon Sep 17 00:00:00 2001 |
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From: "Todd C. Miller" <Todd.Miller@sudo.ws> |
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Date: Fri, 24 Jan 2020 11:13:55 -0700 |
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Subject: [PATCH] Fix crash in sudo 1.8.30 when suspending sudo at the password |
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prompt. The closure pointer in sudo_conv_callback was being filled in with a |
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struct getpass_closure ** instead of a struct getpass_closure *. The bug was |
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introduced in the fix for Bug #910; previously the closure variable was a |
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struct getpass_closure, not a pointer. Fix from Michael Norton; Bug #914. |
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--- |
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plugins/sudoers/check.c | 2 +- |
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1 file changed, 1 insertion(+), 1 deletion(-) |
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|
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diff --git a/plugins/sudoers/check.c b/plugins/sudoers/check.c |
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index 72e87eef6..9b03c7a05 100644 |
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--- a/plugins/sudoers/check.c |
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+++ b/plugins/sudoers/check.c |
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@@ -108,7 +108,7 @@ check_user_interactive(int validated, int mode, struct getpass_closure *closure) |
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/* Construct callback for getpass function. */ |
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memset(&cb, 0, sizeof(cb)); |
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cb.version = SUDO_CONV_CALLBACK_VERSION; |
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- cb.closure = &closure; |
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+ cb.closure = closure; |
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cb.on_suspend = getpass_suspend; |
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cb.on_resume = getpass_resume; |
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callback = &cb; |
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-- |
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2.25.1 |
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|
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