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 with no argument if HOME is not set.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.1 HIGH
NETWORK
HIGH
NONE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
VendorProductVersion
zsh_projectzsh
𝑥
< 5.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
zsh
bullseye (security)
5.8-6+deb11u1
fixed
bullseye
5.8-6+deb11u1
fixed
bookworm
5.9-4
fixed
sid
5.9-8
fixed
trixie
5.9-8
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
zsh
artful
Fixed 5.2-5ubuntu1.1
released
xenial
Fixed 5.1.1-1ubuntu2.1
released
trusty
Fixed 5.0.2-3ubuntu6.1
released
Common Weakness Enumeration
References
https://access.redhat.com/errata/RHSA-2018:3073
https://security.gentoo.org/glsa/201805-10
https://sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58
https://usn.ubuntu.com/3593-1/
https://access.redhat.com/errata/RHSA-2018:3073
https://security.gentoo.org/glsa/201805-10
https://sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58
https://usn.ubuntu.com/3593-1/