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USN-1965-1: pyOpenSSL vulnerability

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USN-1965-1: pyOpenSSL vulnerability

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
09/30/2013
Created
07/25/2018
Added
04/08/2014
Modified
07/09/2020

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.

Solution(s)

  • ubuntu-upgrade-python-openssl
  • ubuntu-upgrade-python3-openssl

References

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