High severity · published Apr 11, 2018
CVE-2018-1100
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function
7.8
CVSS
0.5%
EPSS
No
On KEV
Description
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux Desktop · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
6.0; 7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
6.0; 7.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04 · source: NVD
ZS
Zsh · Zsh
through 5.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1100
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-1100
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1932
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3073
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1563395
lists.debian.org
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
Third Party Advisory
https://security.gentoo.org/glsa/201805-10
Patch
https://sourceforge.net/p/zsh/code/ci/31f72205630687c1cef89347863aab355296a27f/
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