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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
PHP: Format string and XSS vulnerabilities
Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200603-22
(PHP: Format string and XSS vulnerabilities)
Stefan Esser of the Hardened PHP project has reported a few
vulnerabilities found in PHP:
Input passed to the session
ID in the session extension isn't properly sanitised before being
returned to the user via a "Set-Cookie" HTTP header, which can contain
arbitrary injected data.
A format string error while
processing error messages using the mysqli extension in version 5.1 and
By sending a specially crafted request, a remote attacker can
exploit this vulnerability to inject arbitrary HTTP headers, which will
be included in the response sent to the user. The format string
vulnerability may be exploited to execute arbitrary code.
There is no known workaround at this time.
All PHP 5.x users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/php-5.1.2"
All PHP 4.x users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/php-4.4.2"
Network Security Threat Level: Medium
Networks Security ID:
Vulnerability Assessment Copyright: (C) 2006 Michel Arboi
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