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CVE-2018-0502 (GCVE-0-2018-0502)

Vulnerability from cvelistv5 – Published: 2018-09-05 07:00 – Updated: 2024-08-05 03:28
VLAI
Summary
An issue was discovered in zsh before 5.6. The beginning of a #! script file was mishandled, potentially leading to an execve call to a program named on the second line.
Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • improper parsing
Assigner
References
URL Tags
https://bugs.debian.org/908000 x_refsource_MISC
https://sourceforge.net/p/zsh/code/ci/1c4c7b6a4d1… x_refsource_MISC
https://www.zsh.org/mla/zsh-announce/136 x_refsource_MISC
https://usn.ubuntu.com/3764-1/ vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/201903-02 vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2020… mailing-listx_refsource_MLIST
Impacted products
Vendor Product Version CPE status
n/a zsh before 5.6 Affected: zsh before 5.6
Date Public
2018-09-05 00:00
Show details on NVD website
To clipboard 

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    "redhat_vex": {
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      "current_release_date": "2025-11-21T16:43:48+00:00",
      "cve": "CVE-2018-0502",
      "id": "CVE-2018-0502",
      "initial_release_date": "2018-09-04T00:00:00+00:00",
      "product_status:known_not_affected": "10",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "zsh: Improper parsing of the shebang line with special chars",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-0502.json",
      "version": "3"
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      "current_release_date": "2026-09-01T01:55:47Z",
      "cve": "CVE-2018-0502",
      "id": "CVE-2018-0502",
      "initial_release_date": "2023-02-15T04:34:48Z",
      "product_status:known_affected": "397",
      "product_status:known_not_affected": "46",
      "product_status:recommended": "90",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-0502",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-0502.json",
      "version": "40"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.