High severity · published Feb 27, 2018
CVE-2018-7549
In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p
7.5
CVSS
2.6%
EPSS
No
On KEV
Description
In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
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-2018-7549
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-7549
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3073
Third Party Advisory
https://security.gentoo.org/glsa/201805-10
Patch
https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
Third Party Advisory
https://usn.ubuntu.com/3593-1/
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