VDB

CVE-2018-8970

CVE-2018-8970 PUBLISHED CVSS 7.400000095367432 HIGH

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.

EPSS 1.02% · 63.0th percentile

Risk Scores

CVSS 3.0
7.400000095367432
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score
1.02%
63.0th percentile

Affected Products

VendorProductVersions
openbsdlibressl2.7.0
n/an/an/a

Timeline

  • CVE Published
  • Sep 26, 2019 PoC Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Oct 28, 2021 EPSS Score
  • Dec 30, 2021 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Mar 4, 2022 EPSS Score
  • Jul 8, 2022 EPSS Score
  • Sep 11, 2022 EPSS Score
  • Nov 13, 2022 EPSS Score
  • Jan 15, 2023 EPSS Score

References

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