9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
72.9%
Severity: Medium
Date : 2018-04-19
CVE-ID : CVE-2018-7548 CVE-2018-7549
Package : zsh
Type : denial of service
Remote : No
Link : https://security.archlinux.org/AVG-642
The package zsh before version 5.5-1 is vulnerable to denial of
service.
Upgrade to 5.5-1.
The problems have been fixed upstream in version 5.5.
None.
In subst.c in zsh through 5.4.2, there is a NULL pointer dereference
when using ${(PA)…} on an empty array result.
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.
A local attacker can cause a denial of service via a specially input.
https://sourceforge.net/p/zsh/code/ci/110b13e1090bc31ac1352b28adc2d02b6d25a102
https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
https://security.archlinux.org/CVE-2018-7548
https://security.archlinux.org/CVE-2018-7549
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
72.9%