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Vulnerability Assessment & Network Security Forums |
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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. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200412-14] PHP: Multiple vulnerabilities Vulnerability Assessment Details
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[GLSA-200412-14] PHP: Multiple vulnerabilities |
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PHP: Multiple vulnerabilities Detailed Explanation for this Vulnerability Assessment The remote host is affected by the vulnerability described in GLSA-200412-14 (PHP: Multiple vulnerabilities) Stefan Esser and Marcus Boerger reported several different issues in the unserialize() function, including serious exploitable bugs in the way it handles negative references (CVE-2004-1019). Stefan Esser also discovered that the pack() and unpack() functions are subject to integer overflows that can lead to a heap buffer overflow and a heap information leak. Finally, he found that the way multithreaded PHP handles safe_mode_exec_dir restrictions can be bypassed, and that various path truncation issues also permit to bypass path and safe_mode restrictions. Ilia Alshanetsky found a stack overflow issue in the exif_read_data() function (CVE-2004-1065). Finally, Daniel Fabian found that addslashes and magic_quotes_gpc do not properly escape null characters and that magic_quotes_gpc contains a bug that could lead to one level directory traversal. Impact These issues could be exploited by a remote attacker to retrieve web server heap information, bypass safe_mode or path restrictions and potentially execute arbitrary code with the rights of the web server running a PHP application. Workaround There is no known workaround at this time. References: http://www.php.net/release_4_3_10.php http://www.hardened-php.net/advisories/012004.txt http://www.securityfocus.com/archive/1/384663/2004-12-15/2004-12-21/0 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1019 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1065 Solution: All PHP users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-php/php-4.3.10" All mod_php users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-php/mod_php-4.3.10" All php-cgi users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-php/php-cgi-4.3.10" Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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