CVE catalog

CVE-2018-1083

zsh: CVE-2018-1083

Severity: High · CVSS 7.5CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Published: Mar 26, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.59% · Oct 27, 2026

Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	zsh	sid	`5.9.2-1`	fixed
Debian	zsh	forky	`5.9.2-1`	fixed
Debian	zsh	trixie	`5.9-8`	fixed
Debian	zsh	bookworm	`5.9-4`	fixed
Alpine	zsh	3.10	`5.4.2-r1`	fixed
Alpine	zsh	3.11	`5.4.2-r1`	fixed
Alpine	zsh	3.12	`5.4.2-r1`	fixed
Alpine	zsh	3.13	`5.4.2-r1`	fixed
Alpine	zsh	3.14	`5.4.2-r1`	fixed
Alpine	zsh	3.15	`5.4.2-r1`	fixed
Alpine	zsh	3.16	`5.4.2-r1`	fixed
Alpine	zsh	3.17	`5.4.2-r1`	fixed
Alpine	zsh	3.18	`5.4.2-r1`	fixed
Alpine	zsh	3.19	`5.4.2-r1`	fixed
Alpine	zsh	3.20	`5.4.2-r1`	fixed
Alpine	zsh	3.21	`5.4.2-r1`	fixed
Alpine	zsh	3.22	`5.4.2-r1`	fixed
Alpine	zsh	3.23	`5.4.2-r1`	fixed
Alpine	zsh	3.24	`5.4.2-r1`	fixed
Alpine	zsh	3.4	`5.2-r2`	fixed
Alpine	zsh	3.5	`5.2-r4`	fixed
Alpine	zsh	3.6	`5.3.1-r1`	fixed
Alpine	zsh	3.7	`5.4.2-r1`	fixed
Alpine	zsh	3.8	`5.4.2-r1`	fixed
Alpine	zsh	3.9	`5.4.2-r1`	fixed
Ubuntu	zsh	14.04	`5.0.2-3ubuntu6`	vulnerable
Ubuntu	zsh	14.04	`5.0.2-3ubuntu6.1`	vulnerable
Ubuntu	zsh	14.04	`5.0.2-3ubuntu6.2`	fixed
Ubuntu	zsh	16.04	`5.1.1-1ubuntu1`	vulnerable
Ubuntu	zsh	16.04	`5.1.1-1ubuntu2`	vulnerable
Ubuntu	zsh	16.04	`5.1.1-1ubuntu2.1`	vulnerable
Ubuntu	zsh	16.04	`5.1.1-1ubuntu2.2`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	zsh	source	sid	`5.4.2-4`	low	Not reported	[894043]
Debian	zsh	source	forky	`5.4.2-4`	low	Not reported	[894043]
Debian	zsh	source	trixie	`5.4.2-4`	low	Not reported	[894043]
Debian	zsh	source	bookworm	`5.4.2-4`	low	Not reported	[894043]
Alpine	zsh	apk	3.10	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.11	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.12	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.13	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.14	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.15	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.16	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.17	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.18	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.19	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.20	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.21	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.22	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.23	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.24	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.4	`5.2-r2`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.5	`5.2-r4`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.6	`5.3.1-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.7	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.8	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Alpine	zsh	apk	3.9	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1083	Not reported
Ubuntu	zsh	deb	14.04	`5.0.2-3ubuntu6.2`	Not reported	UBUNTU-CVE-2018-1083	Not reported
Ubuntu	zsh	deb	16.04	`5.1.1-1ubuntu2.2`	Not reported	UBUNTU-CVE-2018-1083	Not reported

[Debian bug #894043]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[zsh]Fixed
Source package: [zsh]
Details (2)
- 5.9-4+b15 · amd64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
- 5.9-4+b15 · arm64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
[zsh-common]Fixed
Source package: [zsh]
Details (2)
- 5.9-4 · all · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
- 5.9-4 · all · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
[zsh-dev]Fixed
Source package: [zsh]
Details (2)
- 5.9-4+b15 · amd64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
- 5.9-4+b15 · arm64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
[zsh-doc]Fixed
Source package: [zsh]
Details (2)
- 5.9-4 · all · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
- 5.9-4 · all · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
[zsh-static]Fixed
Source package: [zsh]
Details (2)
- 5.9-4+b15 · amd64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12
- 5.9-4+b15 · arm64 · bookworm
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · bookworm; dsa · zsh · debian · 12

[Debian 13 (Trixie)]

[zsh]Fixed
Source package: [zsh]
Details (2)
- 5.9-8+b23 · amd64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
- 5.9-8+b23 · arm64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
[zsh-common]Fixed
Source package: [zsh]
Details (2)
- 5.9-8 · all · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
- 5.9-8 · all · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
[zsh-dev]Fixed
Source package: [zsh]
Details (2)
- 5.9-8+b23 · amd64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
- 5.9-8+b23 · arm64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
[zsh-doc]Fixed
Source package: [zsh]
Details (2)
- 5.9-8 · all · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
- 5.9-8 · all · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
[zsh-static]Fixed
Source package: [zsh]
Details (2)
- 5.9-8+b23 · amd64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13
- 5.9-8+b23 · arm64 · trixie
  Fixed · Fixed: 5.4.2-4
  dsa · zsh · debian · 13

Observed: Oct 23, 2026, 5:33:15 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]