Vulnerability Details : CVE-2021-41581
Potential exploit
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.
Products affected by CVE-2021-41581
- cpe:2.3:a:openbsd:libressl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41581
0.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41581
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-41581
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41581
-
https://github.com/libressl-portable/openbsd/issues/126
stack-buffer-overflow in function x509_constraints_parse_mailbox · Issue #126 · libressl-portable/openbsd · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
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