diff options
Diffstat (limited to 'main/krb5/CVE-2015-8631.patch')
| -rw-r--r-- | main/krb5/CVE-2015-8631.patch | 570 |
1 files changed, 0 insertions, 570 deletions
diff --git a/main/krb5/CVE-2015-8631.patch b/main/krb5/CVE-2015-8631.patch deleted file mode 100644 index 038ad48100..0000000000 --- a/main/krb5/CVE-2015-8631.patch +++ /dev/null @@ -1,570 +0,0 @@ -From 83ed75feba32e46f736fcce0d96a0445f29b96c2 Mon Sep 17 00:00:00 2001 -From: Greg Hudson <ghudson@mit.edu> -Date: Fri, 8 Jan 2016 13:16:54 -0500 -Subject: [PATCH] Fix leaks in kadmin server stubs [CVE-2015-8631] - -In each kadmind server stub, initialize the client_name and -server_name variables, and release them in the cleanup handler. Many -of the stubs will otherwise leak the client and server name if -krb5_unparse_name() fails. Also make sure to free the prime_arg -variables in rename_principal_2_svc(), or we can leak the first one if -unparsing the second one fails. Discovered by Simo Sorce. - -CVE-2015-8631: - -In all versions of MIT krb5, an authenticated attacker can cause -kadmind to leak memory by supplying a null principal name in a request -which uses one. Repeating these requests will eventually cause -kadmind to exhaust all available memory. - - CVSSv2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C/E:POC/RL:OF/RC:C - -ticket: 8343 (new) -target_version: 1.14-next -target_version: 1.13-next -tags: pullup ---- - src/kadmin/server/server_stubs.c | 151 ++++++++++++++++++++------------------- - 1 file changed, 77 insertions(+), 74 deletions(-) - -diff --git a/src/kadmin/server/server_stubs.c b/src/kadmin/server/server_stubs.c -index 1879dc6..6ac797e 100644 ---- a/src/kadmin/server/server_stubs.c -+++ b/src/kadmin/server/server_stubs.c -@@ -334,7 +334,8 @@ create_principal_2_svc(cprinc_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - restriction_t *rp; -@@ -382,10 +383,10 @@ create_principal_2_svc(cprinc_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -- gss_release_buffer(&minor_stat, &client_name); -- gss_release_buffer(&minor_stat, &service_name); - - exit_func: -+ gss_release_buffer(&minor_stat, &client_name); -+ gss_release_buffer(&minor_stat, &service_name); - free_server_handle(handle); - return &ret; - } -@@ -395,7 +396,8 @@ create_principal3_2_svc(cprinc3_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - restriction_t *rp; -@@ -444,10 +446,10 @@ create_principal3_2_svc(cprinc3_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -- gss_release_buffer(&minor_stat, &client_name); -- gss_release_buffer(&minor_stat, &service_name); - - exit_func: -+ gss_release_buffer(&minor_stat, &client_name); -+ gss_release_buffer(&minor_stat, &service_name); - free_server_handle(handle); - return &ret; - } -@@ -457,8 +459,8 @@ delete_principal_2_svc(dprinc_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -501,10 +503,10 @@ delete_principal_2_svc(dprinc_arg *arg, struct svc_req *rqstp) - - } - free(prime_arg); -- gss_release_buffer(&minor_stat, &client_name); -- gss_release_buffer(&minor_stat, &service_name); - - exit_func: -+ gss_release_buffer(&minor_stat, &client_name); -+ gss_release_buffer(&minor_stat, &service_name); - free_server_handle(handle); - return &ret; - } -@@ -514,8 +516,8 @@ modify_principal_2_svc(mprinc_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - restriction_t *rp; -@@ -559,9 +561,9 @@ modify_principal_2_svc(mprinc_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -570,10 +572,9 @@ generic_ret * - rename_principal_2_svc(rprinc_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; -- char *prime_arg1, -- *prime_arg2; -- gss_buffer_desc client_name, -- service_name; -+ char *prime_arg1 = NULL, *prime_arg2 = NULL; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - restriction_t *rp; -@@ -655,11 +656,11 @@ rename_principal_2_svc(rprinc_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - - } -+exit_func: - free(prime_arg1); - free(prime_arg2); - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -669,8 +670,8 @@ get_principal_2_svc(gprinc_arg *arg, struct svc_req *rqstp) - { - static gprinc_ret ret; - char *prime_arg, *funcname; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -719,9 +720,9 @@ get_principal_2_svc(gprinc_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -731,8 +732,8 @@ get_princs_2_svc(gprincs_arg *arg, struct svc_req *rqstp) - { - static gprincs_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -777,9 +778,9 @@ get_princs_2_svc(gprincs_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -789,8 +790,8 @@ chpass_principal_2_svc(chpass_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -840,9 +841,9 @@ chpass_principal_2_svc(chpass_arg *arg, struct svc_req *rqstp) - } - - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -852,8 +853,8 @@ chpass_principal3_2_svc(chpass3_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -909,9 +910,9 @@ chpass_principal3_2_svc(chpass3_arg *arg, struct svc_req *rqstp) - } - - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -921,8 +922,8 @@ setv4key_principal_2_svc(setv4key_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -969,9 +970,9 @@ setv4key_principal_2_svc(setv4key_arg *arg, struct svc_req *rqstp) - } - - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -981,8 +982,8 @@ setkey_principal_2_svc(setkey_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1029,9 +1030,9 @@ setkey_principal_2_svc(setkey_arg *arg, struct svc_req *rqstp) - } - - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1041,8 +1042,8 @@ setkey_principal3_2_svc(setkey3_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1092,9 +1093,9 @@ setkey_principal3_2_svc(setkey3_arg *arg, struct svc_req *rqstp) - } - - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1106,8 +1107,8 @@ chrand_principal_2_svc(chrand_arg *arg, struct svc_req *rqstp) - krb5_keyblock *k; - int nkeys; - char *prime_arg, *funcname; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1164,9 +1165,9 @@ chrand_principal_2_svc(chrand_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1178,8 +1179,8 @@ chrand_principal3_2_svc(chrand3_arg *arg, struct svc_req *rqstp) - krb5_keyblock *k; - int nkeys; - char *prime_arg, *funcname; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1241,9 +1242,9 @@ chrand_principal3_2_svc(chrand3_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1253,8 +1254,8 @@ create_policy_2_svc(cpol_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1295,9 +1296,9 @@ create_policy_2_svc(cpol_arg *arg, struct svc_req *rqstp) - if (errmsg != NULL) - krb5_free_error_message(handle->context, errmsg); - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1307,8 +1308,8 @@ delete_policy_2_svc(dpol_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1347,9 +1348,9 @@ delete_policy_2_svc(dpol_arg *arg, struct svc_req *rqstp) - if (errmsg != NULL) - krb5_free_error_message(handle->context, errmsg); - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1359,8 +1360,8 @@ modify_policy_2_svc(mpol_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1400,9 +1401,9 @@ modify_policy_2_svc(mpol_arg *arg, struct svc_req *rqstp) - if (errmsg != NULL) - krb5_free_error_message(handle->context, errmsg); - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1413,8 +1414,8 @@ get_policy_2_svc(gpol_arg *arg, struct svc_req *rqstp) - static gpol_ret ret; - kadm5_ret_t ret2; - char *prime_arg, *funcname; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_principal_ent_rec caller_ent; - kadm5_server_handle_t handle; -@@ -1475,9 +1476,9 @@ get_policy_2_svc(gpol_arg *arg, struct svc_req *rqstp) - log_unauth(funcname, prime_arg, - &client_name, &service_name, rqstp); - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - -@@ -1488,8 +1489,8 @@ get_pols_2_svc(gpols_arg *arg, struct svc_req *rqstp) - { - static gpols_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1531,9 +1532,9 @@ get_pols_2_svc(gpols_arg *arg, struct svc_req *rqstp) - if (errmsg != NULL) - krb5_free_error_message(handle->context, errmsg); - } -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1541,7 +1542,8 @@ get_pols_2_svc(gpols_arg *arg, struct svc_req *rqstp) - getprivs_ret * get_privs_2_svc(krb5_ui_4 *arg, struct svc_req *rqstp) - { - static getprivs_ret ret; -- gss_buffer_desc client_name, service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1571,9 +1573,9 @@ getprivs_ret * get_privs_2_svc(krb5_ui_4 *arg, struct svc_req *rqstp) - if (errmsg != NULL) - krb5_free_error_message(handle->context, errmsg); - -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1583,7 +1585,8 @@ purgekeys_2_svc(purgekeys_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg, *funcname; -- gss_buffer_desc client_name, service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - -@@ -1629,9 +1632,9 @@ purgekeys_2_svc(purgekeys_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1641,8 +1644,8 @@ get_strings_2_svc(gstrings_arg *arg, struct svc_req *rqstp) - { - static gstrings_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1688,9 +1691,9 @@ get_strings_2_svc(gstrings_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1700,8 +1703,8 @@ set_string_2_svc(sstring_arg *arg, struct svc_req *rqstp) - { - static generic_ret ret; - char *prime_arg; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - OM_uint32 minor_stat; - kadm5_server_handle_t handle; - const char *errmsg = NULL; -@@ -1744,9 +1747,9 @@ set_string_2_svc(sstring_arg *arg, struct svc_req *rqstp) - krb5_free_error_message(handle->context, errmsg); - } - free(prime_arg); -+exit_func: - gss_release_buffer(&minor_stat, &client_name); - gss_release_buffer(&minor_stat, &service_name); --exit_func: - free_server_handle(handle); - return &ret; - } -@@ -1754,8 +1757,8 @@ set_string_2_svc(sstring_arg *arg, struct svc_req *rqstp) - generic_ret *init_2_svc(krb5_ui_4 *arg, struct svc_req *rqstp) - { - static generic_ret ret; -- gss_buffer_desc client_name, -- service_name; -+ gss_buffer_desc client_name = GSS_C_EMPTY_BUFFER; -+ gss_buffer_desc service_name = GSS_C_EMPTY_BUFFER; - kadm5_server_handle_t handle; - OM_uint32 minor_stat; - const char *errmsg = NULL; -@@ -1797,10 +1800,10 @@ generic_ret *init_2_svc(krb5_ui_4 *arg, struct svc_req *rqstp) - rqstp->rq_cred.oa_flavor); - if (errmsg != NULL) - krb5_free_error_message(NULL, errmsg); -- gss_release_buffer(&minor_stat, &client_name); -- gss_release_buffer(&minor_stat, &service_name); - - exit_func: -+ gss_release_buffer(&minor_stat, &client_name); -+ gss_release_buffer(&minor_stat, &service_name); - return(&ret); - } - |