HOMEVULNERABILITIESCVE-2018-1083
HIGH

CVE-2018-1083

CWE-120Published: March 28, 2018· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2018-1083 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Red Hat3 product(s)
enterprise linux desktopenterprise linux serverenterprise linux workstation
zsh1 product(s)
zsh
Source: NVD CPE · 11 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://sourceforge.net/p/zsh/code/ci/259ac472eac291c8c103c7a0d8a4eaf3c2942ed7
PATCHhttps://sourceforge.net/p/zsh/code/ci/259ac472eac291c8c103c7a0d8a4eaf3c2942ed7
ADVISORYhttp://www.securityfocus.com/bid/103572
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:1932
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3073
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1557382
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/03/msg00038.html
ADVISORYhttps://security.gentoo.org/glsa/201805-10
ADVISORYhttps://usn.ubuntu.com/3608-1/
ADVISORYhttp://www.securityfocus.com/bid/103572
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:1932
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:3073
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=1557382
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/03/msg00038.html
ADVISORYhttps://security.gentoo.org/glsa/201805-10
ADVISORYhttps://usn.ubuntu.com/3608-1/

All References (18)

→
http://www.securityfocus.com/bid/103572Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2018:1932Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1557382Issue Tracking · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/03/msg00038.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
→
https://security.gentoo.org/glsa/201805-10Third Party Advisory
→
https://sourceforge.net/p/zsh/code/ci/259ac472eac291c8c103c7a0d8a4eaf3c2942ed7Patch · Third Party Advisory
→
https://usn.ubuntu.com/3608-1/Third Party Advisory
→
http://www.securityfocus.com/bid/103572Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2018:1932Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1557382Issue Tracking · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/03/msg00038.htmlMailing List · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html

Quick Facts

CVE IDCVE-2018-1083
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-120
CISA KEVNo
Affected4 vendor(s)
PublishedMar 28, 2018

Related CVEs (CWE-120)

CVE-2022-22570
10.0
CVE-2015-5093
10.0
CVE-1999-1237
10.0
CVE-2001-0191
10.0
CVE-2010-10016
10.0
CVE-2022-20827
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1083 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2018-1083·NVD