CVE-2021-42375 (GCVE-0-2021-42375)

Vulnerability from cvelistv5 – Published: 2021-11-15 00:00 – Updated: 2025-04-23 19:24
VLAI?
Summary
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.
CWE
Assigner
Impacted products
Vendor Product Version
busybox busybox Affected: unspecified , < 1.34.0 (custom)
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    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2021-42375\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-23T19:24:13.160Z\", \"dateReserved\": \"2021-10-14T00:00:00.000Z\", \"assignerOrgId\": \"48a46f29-ae42-4e1d-90dd-c1676c1e5e6d\", \"datePublished\": \"2021-11-15T00:00:00.000Z\", \"assignerShortName\": \"JFROG\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

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.


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Detection rules are retrieved from Rulezet.

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