PT-2018-18749

CVE-2018-8970

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Published

2018-03-24

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Updated

2024-06-15

Description by

CVSS 3.1
7.4
High
MetricsAV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions LibreSSL versions 2.7.0
Description The issue arises from the int x509 param set hosts function in lib/libcrypto/x509/x509 vpm.c, which fails to handle a specific special case of a zero name length. This oversight leads to the silent omission of hostname verification, allowing man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Recommendations For LibreSSL version 2.7.0, update to version 2.7.1 to resolve the issue.
Exploitability
Fix
Impacts
Researchers
Vendors
Affected products
Related identifiers
OPENSUSE-SU-2018_2597-1
OPENSUSE-SU-2024:10985-1
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