CVE-2024-23638
SQUID-2023:11 Denial of Service in Cache Manager
En resumen
Versiones de Squid anteriores a 6.6 tienen un error de memoria que derriba el Cache Manager al generar páginas de error. Un usuario confiable puede explotar esto para causar negación de servicio solicitando reportes específicos.
Detalle técnico
Una referencia de puntero expirado en el Cache Manager de Squid causa uso de memoria liberada al generar respuestas de error. Un cliente confiable puede disparar esto mediante solicitudes específicas al Cache Manager, provocando fallo del proceso e indisponibilidad del servicio.
Resumen generado y traducido por IA a partir de la descripción oficial.
Squid is a caching proxy for the Web. Due to an expired pointer reference bug, Squid prior to version 6.6 is vulnerable to a Denial of Service attack against Cache Manager error responses. This problem allows a trusted client to perform Denial of Service when generating error pages for Client Manager reports. Squid older than 5.0.5 have not been tested and should be assumed to be vulnerable. All Squid-5.x up to and including 5.9 are vulnerable. All Squid-6.x up to and including 6.5 are vulnerable. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. As a workaround, prevent access to Cache Manager using Squid's main access control: `http_access deny manager`.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Productos afectados
squid-cache · squid¿Quieres saber si tu infraestructura está expuesta a esto?
Hablar con TrueHacking →Referencias
https://github.com/squid-cache/squid/commit/290ae202883ac28a48867079c2fb34c40efd382bhttps://github.com/squid-cache/squid/commit/e8118a7381213f5cfcdeb4cec1d2d854bfd261c8https://github.com/squid-cache/squid/security/advisories/GHSA-j49p-553x-48rxhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7R4KPSO3MQT3KAOZV7LC2GG3CYMCGK7H/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWQHRDRHDM5PQTU6BHH4C5KGL37X6TVI/https://megamansec.github.io/Squid-Security-Audit/stream-assert.htmlhttps://security.netapp.com/advisory/ntap-20240208-0010/http://www.squid-cache.org/Versions/v5/SQUID-2023_11.patchhttp://www.squid-cache.org/Versions/v6/SQUID-2023_11.patch