PyOpenSSL Mishandles NUL Byte In Certificate Subject Alternative Name
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.
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beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2013-4314US | medium4.3 | — | ||
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… | ||||
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Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.htmlWEB
- http://www.debian.org/security/2013/dsa-2763WEB
- http://www.openwall.com/lists/oss-security/2013/09/06/2WEB
- http://www.ubuntu.com/usn/USN-1965-1WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=1005325WEB
- https://github.com/pyca/pyopensslPACKAGE
- https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yamlWEB
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