Medium severity · published Mar 9, 2018
CVE-2018-1071
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function
5.5
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10 · source: NVD
ZS
Zsh · Zsh
through 5.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1071
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1071
Third Party Advisory
http://www.securityfocus.com/bid/103359
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3073
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1553531
Mailing List
https://lists.debian.org/debian-lts-announce/2018/03/msg00038.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
Third Party Advisory
https://security.gentoo.org/glsa/201805-10
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