Amazing-Mirror/fragattacks
1
0
Fork 0
mirror of https://github.com/vanhoefm/fragattacks.git synced 2024-11-28 10:18:21 -05:00
Code Issues Projects Releases Wiki Activity

wlantest: Fix buffer read overflow on CCMP encryption

Browse Source 
The encryption code may write a full AES block to the end of the
buffer, so make sure the temporary buffer is long enough to fit that
data.
This commit is contained in:
Jouni Malinen 2010-12-17 11:02:56 +02:00 committed by Jouni Malinen
parent 4d00fe48e3
commit 71a7e936e1
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
wlantest/ccmp.c
View File

@ -109,7 +109,7 @@ u8 * ccmp_decrypt(const u8 *tk, const struct ieee80211_hdr *hdr,
if (data_len < 8 + 8)
return NULL;
plain = os_malloc(data_len);
plain = os_malloc(data_len + AES_BLOCK_SIZE);
if (plain == NULL)
return NULL;
@ -241,7 +241,7 @@ u8 * ccmp_encrypt(const u8 *tk, u8 *frame, size_t len, size_t hdrlen, u8 *qos,
plen = len - hdrlen;
last = plen % AES_BLOCK_SIZE;
crypt = os_malloc(hdrlen + 8 + plen + 8);
crypt = os_malloc(hdrlen + 8 + plen + 8 + AES_BLOCK_SIZE);
if (crypt == NULL)
return NULL;