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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2018-8970 Detail

Description

The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0 before 2.7.1 does not support a certain special case of a zero name length, which causes silent omission of hostname verification, and consequently allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. NOTE: the LibreSSL documentation indicates that this special case is supported, but the BoringSSL documentation does not.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://boringssl.googlesource.com/boringssl/+/e759a9cd84198613199259dbed401f4951747cff Third Party Advisory 
https://boringssl.googlesource.com/boringssl/+/e759a9cd84198613199259dbed401f4951747cff Third Party Advisory 
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.1-relnotes.txt Vendor Advisory 
https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.1-relnotes.txt Vendor Advisory 
https://github.com/libressl-portable/openbsd/commit/0654414afcce51a16d35d05060190a3ec4618d42 Patch  Third Party Advisory 
https://github.com/libressl-portable/openbsd/commit/0654414afcce51a16d35d05060190a3ec4618d42 Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-8970
NVD Published Date:
03/24/2018
NVD Last Modified:
11/20/2024
Source:
MITRE