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Vulnerabilidades / CVE-2021-41816

crítica

CVE-2021-41816

ruby: buffer overflow in CGI.escape_html

Publicada Modificada CWE 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, GHSA, Photon OS. Más baja según Ruby Advisory DB (alta), Red Hat (media), Ubuntu (media).

Descripción

CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
Photon OS 4.0ruby, ruby-devel2.7.4-9.ph4
rubygems::GitHub Security Advisory RubyGemscgi0.3.1, 0.2.1, 0.1.0.1
alpine 3.12ruby2.7.5-r0
alpine 3.13ruby2.7.5-r0
alpine 3.14ruby2.7.5-r0
alpine 3.15ruby3.0.3-r0
alpine 3.16ruby3.0.3-r0
alpine 3.17ruby3.0.3-r0
alpine 3.18ruby3.0.3-r0
alpine 3.19ruby3.0.3-r0
alpine 3.20ruby3.0.3-r0
alpine 3.21ruby3.0.3-r0
Mostrar las 24 entradas de 23 fuentes
FuentePaqueteCorregido en
Photon OS 4.0ruby2.7.4-9.ph4
Photon OS 4.0ruby-devel2.7.4-9.ph4
rubygems::GitHub Security Advisory RubyGemscgi0.3.1, 0.2.1, 0.1.0.1
alpine 3.12ruby2.7.5-r0
alpine 3.13ruby2.7.5-r0
alpine 3.14ruby2.7.5-r0
alpine 3.15ruby3.0.3-r0
alpine 3.16ruby3.0.3-r0
alpine 3.17ruby3.0.3-r0
alpine 3.18ruby3.0.3-r0
alpine 3.19ruby3.0.3-r0
alpine 3.20ruby3.0.3-r0
alpine 3.21ruby3.0.3-r0
alpine 3.22ruby3.0.3-r0
alpine 3.23ruby3.0.3-r0
alpine 3.24ruby3.0.3-r0
alpine edgeruby3.0.3-r0
debian 11ruby2.72.7.4-1+deb11u1
rubygems::Ruby Advisory Databasecgi~> 0.1.0.1, ~> 0.1.1, ~> 0.2.1, >= 0.3.1
ubuntu 20.04ruby2.72.7.0-5ubuntu1.6
ubuntu 20.04-ESMruby2.72.7.0-5ubuntu1.6
ubuntu 21.04ruby2.72.7.2-4ubuntu1.3
ubuntu 21.10ruby2.72.7.4-1ubuntu3.1
ubuntu 22.04ruby3.03.0.2-7ubuntu2

Referencias

Las 22 referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.