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The X509Extension in pyOpenSSL before 0.13.1 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade pyopenssl | Jul 30, 2024 | Sep 30, 2013 |
| Suse | — | Upgrade python-pyOpenSSLUpgrade python-pyOpenSSL-doc | Dec 12, 2013 | Sep 30, 2013 |
| Ubuntu | — | Upgrade python3-opensslUpgrade python-openssl | Nov 8, 2024 | Sep 30, 2013 |
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