Fixes CVE: CVE-2022-32292, CVE-2022-32293 Signed-off-by: Khem Raj <[email protected]> --- .../connman/connman/CVE-2022-32292.patch | 37 ++++ .../connman/connman/CVE-2022-32293_p1.patch | 174 ++++++++++++++++++ .../connman/connman/CVE-2022-32293_p2.patch | 141 ++++++++++++++ .../connman/connman_1.41.bb | 3 + 4 files changed, 355 insertions(+) create mode 100644 meta/recipes-connectivity/connman/connman/CVE-2022-32292.patch create mode 100644 meta/recipes-connectivity/connman/connman/CVE-2022-32293_p1.patch create mode 100644 meta/recipes-connectivity/connman/connman/CVE-2022-32293_p2.patch
diff --git a/meta/recipes-connectivity/connman/connman/CVE-2022-32292.patch b/meta/recipes-connectivity/connman/connman/CVE-2022-32292.patch new file mode 100644 index 00000000000..182c5ca29c2 --- /dev/null +++ b/meta/recipes-connectivity/connman/connman/CVE-2022-32292.patch @@ -0,0 +1,37 @@ +From d1a5ede5d255bde8ef707f8441b997563b9312bd Mon Sep 17 00:00:00 2001 +From: Nathan Crandall <[email protected]> +Date: Tue, 12 Jul 2022 08:56:34 +0200 +Subject: gweb: Fix OOB write in received_data() + +There is a mismatch of handling binary vs. C-string data with memchr +and strlen, resulting in pos, count, and bytes_read to become out of +sync and result in a heap overflow. Instead, do not treat the buffer +as an ASCII C-string. We calculate the count based on the return value +of memchr, instead of strlen. + +Fixes: CVE-2022-32292 + +CVE: CVE-2022-32292 + +Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=d1a5ede5d255bde8ef707f8441b997563b9312bd] +Signed-off-by: Khem Raj <[email protected]> +--- + gweb/gweb.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/gweb/gweb.c b/gweb/gweb.c +index 12fcb1d8..13c6c5f2 100644 +--- a/gweb/gweb.c ++++ b/gweb/gweb.c +@@ -918,7 +918,7 @@ static gboolean received_data(GIOChannel *channel, GIOCondition cond, + } + + *pos = '\0'; +- count = strlen((char *) ptr); ++ count = pos - ptr; + if (count > 0 && ptr[count - 1] == '\r') { + ptr[--count] = '\0'; + bytes_read--; +-- +cgit + diff --git a/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p1.patch b/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p1.patch new file mode 100644 index 00000000000..56f8fc82de9 --- /dev/null +++ b/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p1.patch @@ -0,0 +1,174 @@ +From 416bfaff988882c553c672e5bfc2d4f648d29e8a Mon Sep 17 00:00:00 2001 +From: Daniel Wagner <[email protected]> +Date: Tue, 5 Jul 2022 09:11:09 +0200 +Subject: wispr: Update portal context references + +Maintain proper portal context references to avoid UAF. + +Fixes: CVE-2022-32293 +CVE: CVE-2022-32293 +Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=72343929836de80727a27d6744c869dff045757c] +Signed-off-by: Khem Raj <[email protected]> +--- + src/wispr.c | 34 ++++++++++++++++++++++------------ + 1 file changed, 22 insertions(+), 12 deletions(-) + +diff --git a/src/wispr.c b/src/wispr.c +index bde7e63b..84bed33f 100644 +--- a/src/wispr.c ++++ b/src/wispr.c +@@ -105,8 +105,6 @@ static bool enable_online_to_ready_transition = false; + + static void connman_wispr_message_init(struct connman_wispr_message *msg) + { +- DBG(""); +- + msg->has_error = false; + msg->current_element = NULL; + +@@ -166,8 +164,6 @@ static void free_wispr_routes(struct connman_wispr_portal_context *wp_context) + static void free_connman_wispr_portal_context( + struct connman_wispr_portal_context *wp_context) + { +- DBG("context %p", wp_context); +- + if (wp_context->wispr_portal) { + if (wp_context->wispr_portal->ipv4_context == wp_context) + wp_context->wispr_portal->ipv4_context = NULL; +@@ -483,9 +479,6 @@ static void portal_manage_status(GWebResult *result, + &str)) + connman_info("Client-Timezone: %s", str); + +- if (!enable_online_to_ready_transition) +- wispr_portal_context_unref(wp_context); +- + __connman_service_ipconfig_indicate_state(service, + CONNMAN_SERVICE_STATE_ONLINE, type); + +@@ -546,14 +539,17 @@ static void wispr_portal_request_portal( + { + DBG(""); + ++ wispr_portal_context_ref(wp_context); + wp_context->request_id = g_web_request_get(wp_context->web, + wp_context->status_url, + wispr_portal_web_result, + wispr_route_request, + wp_context); + +- if (wp_context->request_id == 0) ++ if (wp_context->request_id == 0) { + wispr_portal_error(wp_context); ++ wispr_portal_context_unref(wp_context); ++ } + } + + static bool wispr_input(const guint8 **data, gsize *length, +@@ -618,13 +614,15 @@ static void wispr_portal_browser_reply_cb(struct connman_service *service, + return; + + if (!authentication_done) { +- wispr_portal_error(wp_context); + free_wispr_routes(wp_context); ++ wispr_portal_error(wp_context); ++ wispr_portal_context_unref(wp_context); + return; + } + + /* Restarting the test */ + __connman_service_wispr_start(service, wp_context->type); ++ wispr_portal_context_unref(wp_context); + } + + static void wispr_portal_request_wispr_login(struct connman_service *service, +@@ -700,11 +698,13 @@ static bool wispr_manage_message(GWebResult *result, + + wp_context->wispr_result = CONNMAN_WISPR_RESULT_LOGIN; + ++ wispr_portal_context_ref(wp_context); + if (__connman_agent_request_login_input(wp_context->service, + wispr_portal_request_wispr_login, +- wp_context) != -EINPROGRESS) ++ wp_context) != -EINPROGRESS) { + wispr_portal_error(wp_context); +- else ++ wispr_portal_context_unref(wp_context); ++ } else + return true; + + break; +@@ -753,6 +753,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + if (length > 0) { + g_web_parser_feed_data(wp_context->wispr_parser, + chunk, length); ++ wispr_portal_context_unref(wp_context); + return true; + } + +@@ -770,6 +771,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + + switch (status) { + case 000: ++ wispr_portal_context_ref(wp_context); + __connman_agent_request_browser(wp_context->service, + wispr_portal_browser_reply_cb, + wp_context->status_url, wp_context); +@@ -781,11 +783,14 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + if (g_web_result_get_header(result, "X-ConnMan-Status", + &str)) { + portal_manage_status(result, wp_context); ++ wispr_portal_context_unref(wp_context); + return false; +- } else ++ } else { ++ wispr_portal_context_ref(wp_context); + __connman_agent_request_browser(wp_context->service, + wispr_portal_browser_reply_cb, + wp_context->redirect_url, wp_context); ++ } + + break; + case 300: +@@ -798,6 +803,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + !g_web_result_get_header(result, "Location", + &redirect)) { + ++ wispr_portal_context_ref(wp_context); + __connman_agent_request_browser(wp_context->service, + wispr_portal_browser_reply_cb, + wp_context->status_url, wp_context); +@@ -808,6 +814,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + + wp_context->redirect_url = g_strdup(redirect); + ++ wispr_portal_context_ref(wp_context); + wp_context->request_id = g_web_request_get(wp_context->web, + redirect, wispr_portal_web_result, + wispr_route_request, wp_context); +@@ -820,6 +827,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + + break; + case 505: ++ wispr_portal_context_ref(wp_context); + __connman_agent_request_browser(wp_context->service, + wispr_portal_browser_reply_cb, + wp_context->status_url, wp_context); +@@ -832,6 +840,7 @@ static bool wispr_portal_web_result(GWebResult *result, gpointer user_data) + wp_context->request_id = 0; + done: + wp_context->wispr_msg.message_type = -1; ++ wispr_portal_context_unref(wp_context); + return false; + } + +@@ -890,6 +899,7 @@ static void proxy_callback(const char *proxy, void *user_data) + xml_wispr_parser_callback, wp_context); + + wispr_portal_request_portal(wp_context); ++ wispr_portal_context_unref(wp_context); + } + + static gboolean no_proxy_callback(gpointer user_data) +-- +cgit + diff --git a/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p2.patch b/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p2.patch new file mode 100644 index 00000000000..b2802035943 --- /dev/null +++ b/meta/recipes-connectivity/connman/connman/CVE-2022-32293_p2.patch @@ -0,0 +1,141 @@ +From 72343929836de80727a27d6744c869dff045757c Mon Sep 17 00:00:00 2001 +From: Daniel Wagner <[email protected]> +Date: Tue, 5 Jul 2022 08:32:12 +0200 +Subject: wispr: Add reference counter to portal context + +Track the connman_wispr_portal_context live time via a +refcounter. This only adds the infrastructure to do proper reference +counting. + +Fixes: CVE-2022-32293 +CVE: CVE-2022-32293 +Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=416bfaff988882c553c672e5bfc2d4f648d29e8a] +Signed-off-by: Khem Raj <[email protected]> +--- + src/wispr.c | 52 ++++++++++++++++++++++++++++++++++++++++++---------- + 1 file changed, 42 insertions(+), 10 deletions(-) + +diff --git a/src/wispr.c b/src/wispr.c +index a07896ca..bde7e63b 100644 +--- a/src/wispr.c ++++ b/src/wispr.c +@@ -56,6 +56,7 @@ struct wispr_route { + }; + + struct connman_wispr_portal_context { ++ int refcount; + struct connman_service *service; + enum connman_ipconfig_type type; + struct connman_wispr_portal *wispr_portal; +@@ -97,6 +98,11 @@ static char *online_check_ipv4_url = NULL; + static char *online_check_ipv6_url = NULL; + static bool enable_online_to_ready_transition = false; + ++#define wispr_portal_context_ref(wp_context) \ ++ wispr_portal_context_ref_debug(wp_context, __FILE__, __LINE__, __func__) ++#define wispr_portal_context_unref(wp_context) \ ++ wispr_portal_context_unref_debug(wp_context, __FILE__, __LINE__, __func__) ++ + static void connman_wispr_message_init(struct connman_wispr_message *msg) + { + DBG(""); +@@ -162,9 +168,6 @@ static void free_connman_wispr_portal_context( + { + DBG("context %p", wp_context); + +- if (!wp_context) +- return; +- + if (wp_context->wispr_portal) { + if (wp_context->wispr_portal->ipv4_context == wp_context) + wp_context->wispr_portal->ipv4_context = NULL; +@@ -201,9 +204,38 @@ static void free_connman_wispr_portal_context( + g_free(wp_context); + } + ++static struct connman_wispr_portal_context * ++wispr_portal_context_ref_debug(struct connman_wispr_portal_context *wp_context, ++ const char *file, int line, const char *caller) ++{ ++ DBG("%p ref %d by %s:%d:%s()", wp_context, ++ wp_context->refcount + 1, file, line, caller); ++ ++ __sync_fetch_and_add(&wp_context->refcount, 1); ++ ++ return wp_context; ++} ++ ++static void wispr_portal_context_unref_debug( ++ struct connman_wispr_portal_context *wp_context, ++ const char *file, int line, const char *caller) ++{ ++ if (!wp_context) ++ return; ++ ++ DBG("%p ref %d by %s:%d:%s()", wp_context, ++ wp_context->refcount - 1, file, line, caller); ++ ++ if (__sync_fetch_and_sub(&wp_context->refcount, 1) != 1) ++ return; ++ ++ free_connman_wispr_portal_context(wp_context); ++} ++ + static struct connman_wispr_portal_context *create_wispr_portal_context(void) + { +- return g_try_new0(struct connman_wispr_portal_context, 1); ++ return wispr_portal_context_ref( ++ g_new0(struct connman_wispr_portal_context, 1)); + } + + static void free_connman_wispr_portal(gpointer data) +@@ -215,8 +247,8 @@ static void free_connman_wispr_portal(gpointer data) + if (!wispr_portal) + return; + +- free_connman_wispr_portal_context(wispr_portal->ipv4_context); +- free_connman_wispr_portal_context(wispr_portal->ipv6_context); ++ wispr_portal_context_unref(wispr_portal->ipv4_context); ++ wispr_portal_context_unref(wispr_portal->ipv6_context); + + g_free(wispr_portal); + } +@@ -452,7 +484,7 @@ static void portal_manage_status(GWebResult *result, + connman_info("Client-Timezone: %s", str); + + if (!enable_online_to_ready_transition) +- free_connman_wispr_portal_context(wp_context); ++ wispr_portal_context_unref(wp_context); + + __connman_service_ipconfig_indicate_state(service, + CONNMAN_SERVICE_STATE_ONLINE, type); +@@ -616,7 +648,7 @@ static void wispr_portal_request_wispr_login(struct connman_service *service, + return; + } + +- free_connman_wispr_portal_context(wp_context); ++ wispr_portal_context_unref(wp_context); + return; + } + +@@ -952,7 +984,7 @@ static int wispr_portal_detect(struct connman_wispr_portal_context *wp_context) + + if (wp_context->token == 0) { + err = -EINVAL; +- free_connman_wispr_portal_context(wp_context); ++ wispr_portal_context_unref(wp_context); + } + } else if (wp_context->timeout == 0) { + wp_context->timeout = g_idle_add(no_proxy_callback, wp_context); +@@ -1001,7 +1033,7 @@ int __connman_wispr_start(struct connman_service *service, + + /* If there is already an existing context, we wipe it */ + if (wp_context) +- free_connman_wispr_portal_context(wp_context); ++ wispr_portal_context_unref(wp_context); + + wp_context = create_wispr_portal_context(); + if (!wp_context) +-- +cgit + diff --git a/meta/recipes-connectivity/connman/connman_1.41.bb b/meta/recipes-connectivity/connman/connman_1.41.bb index 736b78eaebb..79542b2175d 100644 --- a/meta/recipes-connectivity/connman/connman_1.41.bb +++ b/meta/recipes-connectivity/connman/connman_1.41.bb @@ -5,6 +5,9 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/network/${BPN}/${BP}.tar.xz \ file://0001-connman.service-stop-systemd-resolved-when-we-use-co.patch \ file://connman \ file://no-version-scripts.patch \ + file://CVE-2022-32293_p1.patch \ + file://CVE-2022-32293_p2.patch \ + file://CVE-2022-32292.patch \ " SRC_URI:append:libc-musl = " file://0002-resolve-musl-does-not-implement-res_ninit.patch" -- 2.37.2
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