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
HighMetricsAV: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.
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