CVE-2015-8838: Medium severity php vulnerability
ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2015-8838?
CVE-2015-8838 is considered a medium-risk vulnerability due to its potential for man-in-the-middle attacks.
How do I fix CVE-2015-8838?
To mitigate CVE-2015-8838, upgrade to PHP versions 5.4.43, 5.5.27, 5.6.11 or later.
What does CVE-2015-8838 affect?
CVE-2015-8838 affects versions of PHP prior to 5.4.43, 5.5.27, and 5.6.11.
What is a cleartext-downgrade attack related to CVE-2015-8838?
A cleartext-downgrade attack allows attackers to intercept and manipulate data by forcing a connection downgrade to an unencrypted channel.
Is CVE-2015-8838 related to any other vulnerabilities?
Yes, CVE-2015-8838 is related to CVE-2015-3152, which also involves SSL security issues.