The X509Extension in pyOpenSSL before 0.13.1 does not properly handle...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.debian.org/security/2013/dsa-2763
- https://mail.python.org/pipermail/pyopenssl-users/2013-September/000478.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1005325
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00015.html
- http://www.openwall.com/lists/oss-security/2013/09/06/2
- http://www.ubuntu.com/usn/USN-1965-1
Affected Vendor
jean-paul calderone
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.