Description
x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL through 3.4.0 has a stack-based buffer over-read. When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\0' termination.
References (1)
Core 1
Core References
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://github.com/libressl-portable/openbsd/issues/126
Scores
CVSS v3
5.5
EPSS
0.0030
EPSS Percentile
53.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
openbsd/libressl
< 3.4.0
Published
Sep 24, 2021
Tracked Since
Feb 18, 2026