CVE-2016-6129
High
Description
The rsa_verify_hash_ex function in rsa_verify_hash.c in LibTomCrypt, as used in OP-TEE before 2.2.0, does not validate that the message length is equal to the ASN.1 encoded data length, which makes it easier for remote attackers to forge RSA signatures or public certificates by leveraging a Bleichenbacher signature forgery attack.
SeverityHigh
CVSS7.5
Exploit probability—
ProductTrustedfirmware Op-tee
PublishedFeb 13, 2017
First seenFeb 13, 2017
How to fix
Update
- trustedfirmware op-tee2.2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| trustedfirmware op-tee | v < 2.2.0 | 2.2.0 |
| libtom libtomcrypt | v ≤ 1.17 | — |
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