This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2018-7548 →
DEBIAN-CVE-2018-7548
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
Original description
The description as published by the source.
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
zsh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5-1"}]}]
Debian:13
zsh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5-1"}]}]
Debian:14
zsh
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.5-1"}]}]
References
- advisory security-tracker.debian.org