VulnerabilityModified
CVE-2018-1071
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function.
MEDIUM 5.5EPSS 0.43%
Does this matter?
Lower severity and a low EPSS score (0.43%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.43% probability · 37th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- zsh/zsh · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/103359Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1553531Issue 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://usn.ubuntu.com/3608-1/Third Party Advisory
- http://www.securityfocus.com/bid/103359Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1553531Issue 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://usn.ubuntu.com/3608-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.