High severity7.5NVD Advisory· Published Feb 13, 2017· Updated Jun 17, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Libtom/Libtomcrypt2 versions
cpe:2.3:a:libtom:libtomcrypt:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:libtom:libtomcrypt:*:*:*:*:*:*:*:*range: <=1.17
- (no CPE)
Arm/Op Tee
cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*
Range: <2.2.0
Op Tee/OP-TEEllm-fuzzy
Range: <2.2.0

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatch
github.com/libtom/libtomcrypt/commit/5eb9743410ce4657e9d54fef26a2ee31a1b5dd0nvdIssue TrackingPatchThird Party Advisory
www.op-tee.org/advisories/nvdVendor Advisory

News mentions

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cvss	0.488
epss	0.001
exploit	0.000
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ransomware	0.000