Vulnerability Details : 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.
Vulnerability category: Input validation
Products affected by CVE-2018-7549
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
- cpe:2.3:a:zsh:zsh:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7549
0.28%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7549
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-7549
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7549
-
https://usn.ubuntu.com/3593-1/
USN-3593-1: Zsh vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://security.gentoo.org/glsa/201805-10
Zsh: Multiple vulnerabilities (GLSA 201805-10) — Gentoo securityThird Party Advisory
-
https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
zsh / Code / Commit [c2cc8b]Patch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:3073
RHSA-2018:3073 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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