CVE-2018-8970

Source
https://nvd.nist.gov/vuln/detail/CVE-2018-8970
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-8970.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-8970
Related
Published
2018-03-24T21:29:00Z
Modified
2025-01-15T01:36:02.060307Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

The intx509paramsethosts 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.

References

Affected packages

Git / github.com/libressl-portable/portable

Affected ranges

Type
GIT
Repo
https://github.com/libressl-portable/portable
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
Type
GIT
Repo
https://github.com/libressl/openbsd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed

Affected versions

v2.*

v2.1.2
v2.1.3
v2.1.4
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.3.1
v2.3.2
v2.4.0
v2.4.1
v2.5.0
v2.5.1
v2.5.2
v2.6.0
v2.6.1
v2.6.2
v2.7.0