CVE-2017-18206

moderate-risk
Published 2018-02-27

In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.

Do I need to act?

-
0.40% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 9ecaeefa47a18e50d2f6fe0dde61de5b91eb17e0
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (4)

Zsh

Affected Vendors

Canonical Zsh

References (12)

Third Party Advisory https://access.redhat.com/errata/RHSA-2018:1932
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3073
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
Third Party Advisory https://security.gentoo.org/glsa/201805-10
Patch https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6d
Third Party Advisory https://usn.ubuntu.com/3593-1/
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:1932
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:3073
https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
Third Party Advisory https://security.gentoo.org/glsa/201805-10
Patch https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6d
Third Party Advisory https://usn.ubuntu.com/3593-1/
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 10/34 · Low