CVE-2016-6129 Other in n/a

High 7.5 Published Updated

Attackers can forge RSA signatures or certificates in LibTomCrypt due to missing length validation, compromising authentication integrity.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2016-6129?

CVE-2016-6129 is a high-severity vulnerability in n/a, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-20

Which versions are affected by CVE-2016-6129?

It affects 2 products.

Products include Libtom Libtomcrypt, Trustedfirmware Op-Tee.

How do I fix CVE-2016-6129?

Upgrade to a fixed version.

Is CVE-2016-6129 being exploited?

There is no known exploitation of CVE-2016-6129 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2016-6129, DLA-612-1, MGASA-2016-0369, UBUNTU-CVE-2016-6129.

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