VDB
CVE-2018-8970
CVE-2018-8970
PUBLISHED
CVSS 5.800000190734863 MEDIUM
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 0.71% · 72.7th percentile
Risk Scores
CVSS 2.0
5.800000190734863
EPSS Score
0.71%
72.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| openbsd | libressl | 2.7.0 |
| n/a | n/a | n/a |
Timeline
- CVE Published
- Sep 26, 2019 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
References
- https://github.com/libressl-portable/openbsd/commit/0654414afcce51a16d35d05060190a3ec4618d42 url
- https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.7.1-relnotes.txt url
- https://boringssl.googlesource.com/boringssl/+/e759a9cd84198613199259dbed401f4951747cff url
- https://nvd.nist.gov/vuln/detail/CVE-2018-8970 advisory