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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.