TLS ECDH-RSA Ciphersuite Vulnerability in ARM mbedTLS
CVE-2018-1000520

7.5HIGH

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
26 June 2018

What is CVE-2018-1000520?

ARM mbedTLS versions 2.7.0 and earlier contain a vulnerability in the mbedtls_ssl_get_verify_result() function, which incorrectly accepts ECDSA-signed certificates when only RSA-signed certificates should be permitted. This vulnerability occurs when peers negotiate a TLS-ECDH-RSA-* ciphersuite, allowing any peer to present an ECDSA-signed certificate that should otherwise be rejected. This flaw can lead to security risks over secure communications.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

References

https://github.com/ARMmbed/mbedtls/issues/1561
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.