CVE-2018-8970

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…

published March 24, 2018

CVSS
—
EPSS
1%
Percentile
63.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01020 · 63.1th percentile
Published
2018-03-24T21:00Z
EPSS history
Timeline
  • 24 MAR 21:00Z
    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…
    cvelistv5