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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-612-1 libtomcrypt security update
EUVD EUVD EUVD-2016-7063 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 05 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Trustedfirmware
Trustedfirmware op-tee
CPEs cpe:2.3:o:op-tee:op-tee_os:*:*:*:*:*:*:*:* cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*
Vendors & Products Op-tee
Op-tee op-tee Os
Trustedfirmware
Trustedfirmware op-tee
Metrics cvssV3_0

{'score': 7.5, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_0

{'score': 4.8, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T01:22:20.230Z

Reserved: 2016-06-30T00:00:00.000Z

Link: CVE-2016-6129

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2017-02-13T18:59:00.660

Modified: 2026-06-05T20:22:57.563

Link: CVE-2016-6129

cve-icon Redhat

Severity : Moderate

Publid Date: 2016-08-26T00:00:00Z

Links: CVE-2016-6129 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses