Vulnerability CVE-2018-1071
Published: 2018-03-09

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
ZSH -> ZSH 
Redhat -> Enterprise linux desktop 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux workstation 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
http://www.securityfocus.com/bid/103359
https://access.redhat.com/errata/RHSA-2018:3073
https://bugzilla.redhat.com/show_bug.cgi?id=1553531
https://lists.debian.org/debian-lts-announce/2018/03/msg00038.html
https://security.gentoo.org/glsa/201805-10
https://usn.ubuntu.com/3608-1/
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