Vulnerability Details : CVE-2017-18206
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2017-18206
Probability of exploitation activity in the next 30 days: 0.72%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-18206
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-18206
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-18206
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https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
[SECURITY] [DLA 2470-1] zsh security update
-
https://access.redhat.com/errata/RHSA-2018:1932
RHSA-2018:1932 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
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
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https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6d
zsh / Code / Commit [c7a9cf]Patch;Third Party Advisory
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https://access.redhat.com/errata/RHSA-2018:3073
RHSA-2018:3073 - Security Advisory - Red Hat Customer PortalThird Party Advisory
Products affected by CVE-2017-18206
- 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:*:*:*:*:*:*:*:*