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5.5
CVSSv3

CVE-2021-41581

Published: 24/09/2021 Updated: 29/09/2021
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraints.c in LibreSSL up to and including 3.4.0 has a stack-based buffer over-read. When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\0' termination.

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openbsd libressl

Vendor Advisories

Arch Linux Issues:
x509_constraints_parse_mailbox in lib/libcrypto/x509/x509_constraintsc in LibreSSL through 340 has a stack-based buffer over-read When the input exceeds DOMAIN_PART_MAX_LEN, the buffer lacks '\0' termination ...

References

CWE-125https://github.com/libressl-portable/openbsd/issues/126https://nvd.nist.govhttps://security.archlinux.org/CVE-2021-41581
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2021-35000CVE-2024-4439unauthorizedCVE-2024-0042CVE-2024-31848CVE-2023-40694cache poisoningCVE-2024-23707firmware
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