VulnerabilityModified
CVE-2017-18206
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
CRITICAL 9.8EPSS 3.11%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.11% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- zsh/zsh · canonical/ubuntu linux
- Source
- cve@mitre.org
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/c7a9cf465dd620ef48d586026944d9bd7a0d5d6dPatch, Third 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/c7a9cf465dd620ef48d586026944d9bd7a0d5d6dPatch, Third Party Advisory
- https://usn.ubuntu.com/3593-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.