vulnwire
8.1high

CVE-2017-18205

In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
8.1
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.0%
percentile 81%
Public exploits
0
none known

In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command with no argument if HOME is not set.

Exploit prediction (EPSS)

2.04% probability of exploitation in the next 30 days, higher than 81% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

  • sourceforge.net /p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58 · x_refsource_MISC, x_transferred
  • usn.ubuntu.com /3593-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • security.gentoo.org /glsa/201805-10 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • access.redhat.com /errata/RHSA-2018:3073 · vendor-advisory, x_refsource_REDHAT, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.