X.509 Certificate Chain Vulnerability in ARM Mbed TLS
CVE-2017-14032

8.1HIGH

Key Information:

Vendor

Arm
Status
Mbed Tls
Vendor
CVE Published:
30 August 2017

What is CVE-2017-14032?

ARM Mbed TLS prior to version 1.3.21 and 2.x prior to version 2.1.9 is susceptible to a serious vulnerability that enables remote attackers to bypass peer authentication under certain configurations. Specifically, this occurs when optional authentication is set up and the attacker leverages an X.509 certificate chain containing multiple intermediates. It is important to note that earlier versions branded as PolarSSL are not susceptible to this issue.

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References

http://www.debian.org/security/2017/dsa-3967
vendor-advisoryx_refsource_DEBIAN
https://tls.mbed.org/tech-updates/security-advisories/mbe...
x_refsource_CONFIRM
https://github.com/ARMmbed/mbedtls/commit/31458a18788b0cf...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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