CVE-2017-18205
UnknownEPSS 2.12%
Last modified
CVE-2017-18205 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.12% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zsh Project | Zsh | < 5.4 |
References
- https://sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58Patch, Third Party Advisory
- https://sourceforge.net/p/zsh/code/ci/eb783754bdb74377f3cea4ceca9c23a02ea1bf58Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2017-18205?
Severity scoring for CVE-2017-18205 is pending analysis. The EPSS model estimates a 2.12% probability of exploitation in the next 30 days.
How do I fix CVE-2017-18205?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2017
- CVE-2017-1820Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultI…
- CVE-2017-18200The f2fs implementation in the Linux kernel before 4.14 mish…
- CVE-2017-18201An issue was discovered in GNU libcdio before 2.0.0. There i…
- CVE-2017-18202The __oom_reap_task_mm function in mm/oom_kill.c in the Linu…7
- CVE-2017-18203The dm_get_from_kobject function in drivers/md/dm.c in the L…
- CVE-2017-18204The ocfs2_setattr function in fs/ocfs2/file.c in the Linux k…
- CVE-2017-18206In utils.c in zsh before 5.4, symlink expansion had a buffer…
- CVE-2017-18207The Wave_read._read_fmt_chunk function in Lib/wave.py in Pyt…
- CVE-2017-18208The madvise_willneed function in mm/madvise.c in the Linux k…
- CVE-2017-18209In the GetOpenCLCachedFilesDirectory function in magick/open…
- CVE-2017-1821Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultI…
- CVE-2017-18210In ImageMagick 7.0.7, a NULL pointer dereference vulnerabili…
Are you affected by CVE-2017-18205?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST