Vulnerability Description
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
CVSS Score
9.8
CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zsh | Zsh | < 5.4 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2018:1932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
- https://security.gentoo.org/glsa/201805-10Third Party Advisory
- https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6dPatchThird Party Advisory
- https://usn.ubuntu.com/3593-1/Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3073Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html
- https://security.gentoo.org/glsa/201805-10Third Party Advisory
- https://sourceforge.net/p/zsh/code/ci/c7a9cf465dd620ef48d586026944d9bd7a0d5d6dPatchThird Party Advisory
- https://usn.ubuntu.com/3593-1/Third Party Advisory
FAQ
What is CVE-2017-18206?
CVE-2017-18206 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
How severe is CVE-2017-18206?
CVE-2017-18206 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-18206?
Check the references section above for vendor advisories and patch information. Affected products include: Zsh Zsh, Canonical Ubuntu Linux.