CVE-2013-4314
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.
02 / AFFECTED SOFTWARE
Affected packages
8 explicit affected versions
8 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
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.
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.
05 / REFERENCES
Further evidence
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html
- http://www.debian.org/security/2013/dsa-2763
- http://www.openwall.com/lists/oss-security/2013/09/06/2
- http://www.ubuntu.com/usn/USN-1965-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1005325
- https://github.com/advisories/GHSA-6748-36qp-fx6r
- https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html
- https://github.com/pyca/pyopenssl
- https://github.com/pyca/pyopenssl/commit/6bbf44a00b35fb28df1f66aa194b2fe95eab1ab2
- https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2013-31.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2013-4314