CVE-2019-11072

lighttpd before 1.4.54 has a signed integer overflow, which might allo ...

Publicada 10 abr 2019Modificada 17 jun 2026CWE 190

En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD.

Descripción

lighttpd before 1.4.54 has a signed integer overflow, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a malicious HTTP GET request, as demonstrated by mishandling of /%2F? in burl_normalize_2F_to_slash_fix in burl.c. NOTE: The developer states "The feature which can be abused to cause the crash is a new feature in lighttpd 1.4.50, and is not enabled by default. It must be explicitly configured in the config file (e.g. lighttpd.conf). Certain input will trigger an abort() in lighttpd when that feature is enabled. lighttpd detects the underflow or realloc() will fail (in both 32-bit and 64-bit executables), also detected in lighttpd. Either triggers an explicit abort() by lighttpd. This is not exploitable beyond triggering the explicit abort() with subsequent application exit.

Paquetes afectados y versiones corregidas

Fuente	Paquete	Corregido en
debian 11	lighttpd	1.4.53-4
debian 12	lighttpd	1.4.53-4
debian 13	lighttpd	1.4.53-4
debian 14	lighttpd	1.4.53-4
echo	lighttpd	1.4.53-4

Referencias

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