ClearML/dropbear
1
0
Fork 0
mirror of https://github.com/clearml/dropbear synced 2025-02-07 13:21:15 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

limit rsa->e size to 64 bits

Browse Source 
--HG--
branch : fuzz
This commit is contained in:
Matt Johnston 2018-02-17 19:41:44 +08:00
parent 7e8094d53a
commit dcb41e91eb
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
rsa.c
View File

@ -68,6 +68,12 @@ int buf_get_rsa_pub_key(buffer* buf, dropbear_rsa_key *key) {
goto out; goto out;
} }
/* 64 bit is limit used by openssl, so we won't block any keys in the wild */
if (mp_count_bits(key->e) > 64) {
dropbear_log(LOG_WARNING, "RSA key bad e");
goto out;
}
TRACE(("leave buf_get_rsa_pub_key: success")) TRACE(("leave buf_get_rsa_pub_key: success"))
ret = DROPBEAR_SUCCESS; ret = DROPBEAR_SUCCESS;
out: out: