CVE-2013-6420

La función asn1_time_to_time_t en ext / openssl / openssl.c en PHP anterior a 5.3.28, 5.4.x aterior a 5.4.23 y 5.5.x anterior de 5.5.7 no trata correctamente las marcas de tiempo (timestamps) (1) notBefore y (2) notAfter en certificados X 0.509 , lo que permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (corrupción de memoria) a través de un certificado manipulado que no está tratado adecuadamente por la función openssl_x509_parse.

The openssl_x509_parse function in openssl.c in the OpenSSL module in PHP before 5.4.18 and 5.5.x before 5.5.2 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, a related issue to CVE-2009-2408. The asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse notAfter timestamps in X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service via a crafted certificate that is not properly handled by the openssl_x509_parse function. The scan function in ext/date/lib/parse_iso_intervals.c in PHP through 5.5.6 does not properly restrict creation of DateInterval objects, which might allow remote attackers to cause a denial of service via a crafted interval specification. The updated php packages have been upgraded to the 5.5.8 version which is not vulnerable to these issues. Additionally, the PECL packages which requires so has been rebuilt for php-5.5.8 and some has been upgraded to their latest versions.