github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-14 02:27:26 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

cmdhfseos: fix stack buffer overflow in select_DF_verify

Browse source 
increased CMAC buffer size, otherwise memset in aes_cmac writes 16-bytes to 8-byte buffer
This commit is contained in:
Jakub Kramarz 2025-05-08 23:52:01 +02:00
commit 0655b6389e
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
client/src/cmdhfseos.c
View file

@ -562,7 +562,7 @@ static int select_DF_verify(uint8_t *response, uint8_t response_length, uint8_t
}
// ----------------- MAC Key Generation -----------------
uint8_t cmac[8];
uint8_t cmac[16];
uint8_t MAC_key[24] = {0x00};
memcpy(MAC_key, keys[key_index].privMacKey, 16);
create_cmac(MAC_key, input, cmac, sizeof(input), encryption_algorithm);