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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-03-24T21:00:00

Updated: 2024-08-05T07:10:47.345Z

Reserved: 2018-03-24T00:00:00

Link: CVE-2018-8970

cve-icon Vulnrichment

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cve-icon NVD

Status : Analyzed

Published: 2018-03-24T21:29:00.227

Modified: 2018-04-24T16:40:13.967

Link: CVE-2018-8970

cve-icon Redhat

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