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Ubuntu: (Multiple Advisories) (CVE-2016-2047): MySQL vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2016-2047): MySQL vulnerabilities

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
01/27/2016
Created
07/25/2018
Added
04/21/2016
Modified
03/02/2020

Description

The ssl_verify_server_cert function in sql-common/client.c in MariaDB before 5.5.47, 10.0.x before 10.0.23, and 10.1.x before 10.1.10; Oracle MySQL 5.5.48 and earlier, 5.6.29 and earlier, and 5.7.11 and earlier; and Percona Server do not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "/CN=" string in a field in a certificate, as demonstrated by "/OU=/CN=bar.com/CN=foo.com."

Solution(s)

  • ubuntu-upgrade-mysql-server-5-5
  • ubuntu-upgrade-mysql-server-5-6
  • ubuntu-upgrade-mysql-server-5-7

References

  • USN-2953-1
  • USN-2954-1
  • DLA-447-1
  • DSA-3453
  • DSA-3557
  • CVE-2016-2047

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