crítica
CVE-2021-3838
DomPDF before version 2.0.0 is vulnerable to PHAR deserialization due ...
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
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, GHSA. Más baja según Ubuntu (media).
Descripción
DomPDF before version 2.0.0 is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the file_get_contents() function. An attacker who can upload files of any type to the server can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution, especially when DOMPdf is used with frameworks with documented POP chains like Laravel or vulnerable developer code.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| composer::GitHub Security Advisory Composer | dompdf/dompdf | 2.0.0 |
| debian 10 | php-dompdf | 0.6.2+dfsg-3+deb10u2 |
| debian 11 | php-dompdf | 0.6.2+dfsg-3.1+deb11u1 |
| debian 12 | php-dompdf | 2.0.2+dfsg-1 |
| echo | php-dompdf | 2.0.2+dfsg-1 |
| rapidfort ubuntu 20.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| rapidfort ubuntu 22.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| rapidfort ubuntu 24.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| ubuntu 16.04-ESM | php-dompdf | 0.6.1+dfsg-2ubuntu1+esm1 |
| ubuntu 18.04-ESM | php-dompdf | 0.6.2+dfsg-3ubuntu0.18.04.1~esm1 |
| ubuntu 20.04 | php-dompdf | 0.6.2+dfsg-3ubuntu0.20.04.1 |
| ubuntu 20.04-ESM | php-dompdf | 0.6.2+dfsg-3ubuntu0.20.04.1 |
Mostrar las 13 entradas de 13 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| composer::GitHub Security Advisory Composer | dompdf/dompdf | 2.0.0 |
| debian 10 | php-dompdf | 0.6.2+dfsg-3+deb10u2 |
| debian 11 | php-dompdf | 0.6.2+dfsg-3.1+deb11u1 |
| debian 12 | php-dompdf | 2.0.2+dfsg-1 |
| echo | php-dompdf | 2.0.2+dfsg-1 |
| rapidfort ubuntu 20.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| rapidfort ubuntu 22.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| rapidfort ubuntu 24.04 | php-dompdf | 0:0.6.2+dfsg-3.1ubuntu0.1 |
| ubuntu 16.04-ESM | php-dompdf | 0.6.1+dfsg-2ubuntu1+esm1 |
| ubuntu 18.04-ESM | php-dompdf | 0.6.2+dfsg-3ubuntu0.18.04.1~esm1 |
| ubuntu 20.04 | php-dompdf | 0.6.2+dfsg-3ubuntu0.20.04.1 |
| ubuntu 20.04-ESM | php-dompdf | 0.6.2+dfsg-3ubuntu0.20.04.1 |
| ubuntu 22.04 | php-dompdf | 0.6.2+dfsg-3.1ubuntu0.1 |
Referencias
- https://github.com/dompdf/dompdf
- https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a
- https://github.com/dompdf/dompdf/issues/2564
- https://huntr.com/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e
- https://huntr.dev/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e
- https://nvd.nist.gov/vuln/detail/CVE-2021-3838
- https://ubuntu.com/security/notices/USN-6277-1
- https://ubuntu.com/security/notices/USN-6277-2