diff options
Diffstat (limited to 'meta-networking/recipes-support/wireshark/files/CVE-2023-2855.patch')
| -rw-r--r-- | meta-networking/recipes-support/wireshark/files/CVE-2023-2855.patch | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/meta-networking/recipes-support/wireshark/files/CVE-2023-2855.patch b/meta-networking/recipes-support/wireshark/files/CVE-2023-2855.patch new file mode 100644 index 0000000000..a6370f91cf --- /dev/null +++ b/meta-networking/recipes-support/wireshark/files/CVE-2023-2855.patch @@ -0,0 +1,117 @@ +From 0181fafb2134a177328443a60b5e29c4ee1041cb Mon Sep 17 00:00:00 2001 +From: Guy Harris <gharris@sonic.net> +Date: Tue, 16 May 2023 12:05:07 -0700 +Subject: [PATCH] candump: check for a too-long frame length. + +If the frame length is longer than the maximum, report an error in the +file. + +Fixes #19062, preventing the overflow on a buffer on the stack (assuming +your compiler doesn't call a bounds-checknig version of memcpy() if the +size of the target space is known). + +Upstream-Status: Backport [https://gitlab.com/wireshark/wireshark/-/commit/0181fafb2134a177328443a60b5e29c4ee1041cb] +CVE: CVE-2023-2855 +Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> +--- + wiretap/candump.c | 47 ++++++++++++++++++++++++++++++++++------------- + 1 file changed, 34 insertions(+), 13 deletions(-) + +diff --git a/wiretap/candump.c b/wiretap/candump.c +index 3eb17dd..954b509 100644 +--- a/wiretap/candump.c ++++ b/wiretap/candump.c +@@ -26,8 +26,9 @@ static gboolean candump_seek_read(wtap *wth, gint64 seek_off, + wtap_rec *rec, Buffer *buf, + int *err, gchar **err_info); + +-static void +-candump_write_packet(wtap_rec *rec, Buffer *buf, const msg_t *msg) ++static gboolean ++candump_write_packet(wtap_rec *rec, Buffer *buf, const msg_t *msg, int *err, ++ gchar **err_info) + { + static const char *can_proto_name = "can-hostendian"; + static const char *canfd_proto_name = "canfd"; +@@ -57,9 +58,20 @@ candump_write_packet(wtap_rec *rec, Buffer *buf, const msg_t *msg) + + if (msg->is_fd) + { +- canfd_frame_t canfd_frame; ++ canfd_frame_t canfd_frame = {0}; ++ ++ /* ++ * There's a maximum of CANFD_MAX_DLEN bytes in a CAN-FD frame. ++ */ ++ if (msg->data.length > CANFD_MAX_DLEN) { ++ *err = WTAP_ERR_BAD_FILE; ++ if (err_info != NULL) { ++ *err_info = g_strdup_printf("candump: File has %u-byte CAN FD packet, bigger than maximum of %u", ++ msg->data.length, CANFD_MAX_DLEN); ++ } ++ return FALSE; ++ } + +- memset(&canfd_frame, 0, sizeof(canfd_frame)); + canfd_frame.can_id = msg->id; + canfd_frame.flags = msg->flags; + canfd_frame.len = msg->data.length; +@@ -69,10 +81,21 @@ candump_write_packet(wtap_rec *rec, Buffer *buf, const msg_t *msg) + } + else + { +- can_frame_t can_frame; ++ can_frame_t can_frame = {0}; ++ ++ /* ++ * There's a maximum of CAN_MAX_DLEN bytes in a CAN frame. ++ */ ++ if (msg->data.length > CAN_MAX_DLEN) { ++ *err = WTAP_ERR_BAD_FILE; ++ if (err_info != NULL) { ++ *err_info = g_strdup_printf("candump: File has %u-byte CAN packet, bigger than maximum of %u", ++ msg->data.length, CAN_MAX_DLEN); ++ } ++ return FALSE; ++ } + +- memset(&can_frame, 0, sizeof(can_frame)); +- can_frame.can_id = msg->id; ++ can_frame.can_id = msg->id; + can_frame.can_dlc = msg->data.length; + memcpy(can_frame.data, msg->data.data, msg->data.length); + +@@ -86,6 +109,8 @@ candump_write_packet(wtap_rec *rec, Buffer *buf, const msg_t *msg) + + rec->rec_header.packet_header.caplen = packet_length; + rec->rec_header.packet_header.len = packet_length; ++ ++ return TRUE; + } + + static gboolean +@@ -193,9 +218,7 @@ candump_read(wtap *wth, wtap_rec *rec, Buffer *buf, int *err, gchar **err_info, + ws_debug_printf("%s: Stopped at offset %" PRIi64 "\n", G_STRFUNC, file_tell(wth->fh)); + #endif + +- candump_write_packet(rec, buf, &msg); +- +- return TRUE; ++ return candump_write_packet(rec, buf, &msg, err, err_info); + } + + static gboolean +@@ -219,9 +242,7 @@ candump_seek_read(wtap *wth , gint64 seek_off, wtap_rec *rec, + if (!candump_parse(wth->random_fh, &msg, NULL, err, err_info)) + return FALSE; + +- candump_write_packet(rec, buf, &msg); +- +- return TRUE; ++ return candump_write_packet(rec, buf, &msg, err, err_info); + } + + /* +-- +2.25.1 + |