CVE-2022-42916

En curl anterior a 7.86.0, se podía omitir la verificación HSTS para engañarlo y que se quedara con HTTP. Usando su soporte HSTS, se puede indicar a curl que use HTTPS directamente (en lugar de usar un paso HTTP de texto limpio inseguro) incluso cuando se proporciona HTTP en la URL. Este mecanismo podría omitirse si el nombre de anfitrión en la URL dada usa caracteres IDN que se reemplazan con sus homólogos ASCII como parte de la conversión de IDN, por ejemplo, usando el carácter UTF-8 U+3002 (DEOGRAPHIC FULL STOP) en lugar del ASCII común. punto final de U+002E (.). La primera versión afectada es la 7.77.0 2021-05-26.

A vulnerability was found in curl. The issue occurs because curl's HSTS check can be bypassed to trick it to keep using HTTP. Using its HSTS support, it can instruct curl to use HTTPS directly instead of using an insecure clear-text HTTP step even when HTTP is provided in the URL. This mechanism can be bypassed if the hostname in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion. Like using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop (U+002E) `.`.

Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.51 Service Pack 1 serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.51, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include buffer over-read, buffer overflow, bypass, code execution, denial of service, double free, integer overflow, out of bounds read, and use-after-free vulnerabilities.