CVE catalog

CVE-2018-1071

zsh: CVE-2018-1071

Severity: Low · CVSS 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Published: Mar 9, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.43% · Oct 25, 2026

zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.

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
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
Suse	zsh	linux enterprise module for basesystem 15	`5.5-3.3.15`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	zsh	source	sid	`5.4.2-4`	low	Not reported	[894044]
Debian	zsh	source	forky	`5.4.2-4`	low	Not reported	[894044]
Debian	zsh	source	trixie	`5.4.2-4`	low	Not reported	[894044]
Debian	zsh	source	bookworm	`5.4.2-4`	low	Not reported	[894044]
Alpine	zsh	apk	3.10	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.11	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.12	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.13	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.14	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.15	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.16	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.17	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.18	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.19	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.20	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.21	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.22	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.23	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.24	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.4	`5.2-r2`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.5	`5.2-r4`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.6	`5.3.1-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.7	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.8	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Alpine	zsh	apk	3.9	`5.4.2-r1`	Not reported	ALPINE-CVE-2018-1071	Not reported
Ubuntu	zsh	deb	14.04	`5.0.2-3ubuntu6.2`	Not reported	UBUNTU-CVE-2018-1071	Not reported
Ubuntu	zsh	deb	16.04	`5.1.1-1ubuntu2.2`	Not reported	UBUNTU-CVE-2018-1071	Not reported
Ubuntu	zsh	deb	14.04	`5.0.2-3ubuntu6.2`	Not reported	USN-3608-1	Not reported
Ubuntu	zsh	deb	16.04	`5.1.1-1ubuntu2.2`	Not reported	USN-3608-1	Not reported
Suse	zsh	rpm	linux enterprise module for basesystem 15	`5.5-3.3.15`	Not reported	SUSE-SU-2018:1874-1	Not reported

[Debian bug #894044]

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, 5:33:11 PM UTC

References

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