CVE-2016-6129

HIGH
7.5
CVSS Score
Published: February 13, 2017 at 06:00 PM UTC
Updated: June 17, 2026 at 12:50 AM UTC
2 products affected across 2 vendorsOp TeeLibtomcrypt

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.2.0
Affected range stops below 2.2.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_CONFIRMIssue TrackingPatch
https://bugzilla.redhat.com/show_bug.cgi?id=1370955
x_refsource_CONFIRMVendor Advisory
https://www.op-tee.org/advisories/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20

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