Vulnerabilidades / CVE-2018-7548

crítica

CVE-2018-7548

zsh: null-pointer deref when using ${(PA)...} on an empty array result

Publicada Modificada CWE 476
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
Red Hat2.8CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

La etiqueta propia de Trivy es CRITICAL. Crítica según NVD, Photon OS. Más baja según Ubuntu (media), Red Hat (baja), Amazon (baja).

Descripción

In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
Photon OS 2.0zsh5.3.1-5.ph2
amazon linux 2zsh, zsh-debuginfo, zsh-html5.3.1-7.amzn2
debian 11zsh5.5-1
debian 12zsh5.5-1
debian 13zsh5.5-1
debian 14zsh5.5-1
echozsh5.5-1
ubuntu 17.10zsh5.2-5ubuntu1.1
Mostrar las 10 entradas de 8 fuentes
FuentePaqueteCorregido en
Photon OS 2.0zsh5.3.1-5.ph2
amazon linux 2zsh5.3.1-7.amzn2
amazon linux 2zsh-debuginfo5.3.1-7.amzn2
amazon linux 2zsh-html5.3.1-7.amzn2
debian 11zsh5.5-1
debian 12zsh5.5-1
debian 13zsh5.5-1
debian 14zsh5.5-1
echozsh5.5-1
ubuntu 17.10zsh5.2-5ubuntu1.1

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.