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GoogleOSV:PYSEC-2013-31HistorySep 30, 2013 - 9:55 p.m.
PYSEC-2013-31
2013-09-3021:55:00
Google
osv.dev
12
EPSS
0.002
Percentile
51.9%
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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