CVE-2016-6129

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory op-tee.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/libtom/libtomcrypt/commit/5eb9743410ce4657e9d54fef26a2ee31a1b5dd0 issue tracking third party advisory patch
https://bugzilla.redhat.com/show_bug.cgi?id=1370955 issue tracking patch
https://www.op-tee.org/advisories/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-6129?
CVE-2016-6129 has been scored as a high severity vulnerability.
How to fix CVE-2016-6129?
To fix CVE-2016-6129, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6129 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-6129 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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