High severity8.1NVD Advisory· Published Feb 27, 2018· Updated Jun 17, 2026

CVE-2017-18205

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Zsh/Zshllm-fuzzy
Range: <5.4
osv-coords5 versions
pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3 pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3 pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3 pkg:rpm/suse/zsh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3
< 5.0.5-6.7.2+ 4 more
- (no CPE)range: < 5.0.5-6.7.2
- (no CPE)range: < 4.3.6-67.9.8.1
- (no CPE)range: < 4.3.6-67.9.8.1
- (no CPE)range: < 5.0.5-6.7.2
- (no CPE)range: < 5.0.5-6.7.2

Patches

Vulnerability mechanics

References

sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58nvdPatchThird Party Advisory
access.redhat.com/errata/RHSA-2018:3073nvd
security.gentoo.org/glsa/201805-10nvd
usn.ubuntu.com/3593-1/nvd

News mentions

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epss	0.002
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ransomware	0.000