CVE-2018-1100

high
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
8.0

Description

zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-1100

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-1100.html

vendor Authored 2026-05-27

Vendor advisory: arch — https://security.archlinux.org/ASA-201804-5

OS impact

OSVersionStatusFixed in
arch archfixed5.5-1
suse slesaffected
debian debianbookwormfixed5.5-1
debian debianbullseyefixed5.5-1
debian debianforkyfixed5.5-1
debian debiansidfixed5.5-1
debian debiantrixiefixed5.5-1

References

Verify integrity in audit chain (admin only). AS-IS.