CVE-2021-41581
First published: Fri Sep 24 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openbsd Libressl | <=3.4.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2021-41581.
What is the severity of CVE-2021-41581?
The severity of CVE-2021-41581 is medium with a severity value of 5.5.
What is the affected software?
The affected software is Openbsd Libressl up to and including version 3.4.0.
What is the description of CVE-2021-41581?
CVE-2021-41581 is a stack-based buffer over-read vulnerability in x509_constraints_parse_mailbox function in Libressl.
Is there a fix available for CVE-2021-41581?
Yes, the fix for CVE-2021-41581 is to update to a version of Libressl that is not affected by the vulnerability.
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