diff options
| author | Dario Lombardo <lomato@gmail.com> | 2017-12-23 21:52:20 +0100 |
|---|---|---|
| committer | Anders Broman <a.broman58@gmail.com> | 2017-12-24 06:39:38 +0000 |
| commit | e30374d1691c5728cc979e9682ad4e99ea5c8252 (patch) | |
| tree | 5dedefd0dd7e48fabcfa72e4cd7d3e5e738b521c /epan/crypt | |
| parent | c2dee336304a0bfb4e53ec3786c637b5c96903ba (diff) | |
airpdcap: check return value for gcry_mac_read (CID: 1420699).
Change-Id: Ifdf044d99e912ac90044aca7be503fdf39b4fe74
Reviewed-on: https://code.wireshark.org/review/24967
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Diffstat (limited to 'epan/crypt')
| -rw-r--r-- | epan/crypt/airpdcap.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/epan/crypt/airpdcap.c b/epan/crypt/airpdcap.c index 577b1a3bd4..5d86631625 100644 --- a/epan/crypt/airpdcap.c +++ b/epan/crypt/airpdcap.c @@ -2264,7 +2264,11 @@ AirPDcapTDLSDeriveKey( gcry_mac_write(cmac_handle, &data[offset_fte], 4); gcry_mac_write(cmac_handle, zeros, 16); gcry_mac_write(cmac_handle, &data[offset_fte + 20], data[offset_fte + 1] + 2 - 20); - gcry_mac_read(cmac_handle, mic, &cmac_len); + if (gcry_mac_read(cmac_handle, mic, &cmac_len) != GPG_ERR_NO_ERROR) { + AIRPDCAP_DEBUG_PRINT_LINE("AirPDcapTDLSDeriveKey", "MAC read error", AIRPDCAP_DEBUG_LEVEL_3); + gcry_mac_close(cmac_handle); + return AIRPDCAP_RET_UNSUCCESS; + } if (memcmp(mic, &data[offset_fte + 4], 16)) { AIRPDCAP_DEBUG_PRINT_LINE("AirPDcapTDLSDeriveKey", "MIC verification failed", AIRPDCAP_DEBUG_LEVEL_3); gcry_mac_close(cmac_handle); |