CVE-2020-8618 (GCVE-0-2020-8618)

Vulnerability from cvelistv5 – Published: 2020-06-17 21:20 – Updated: 2024-09-16 23:36
VLAI
Title
A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer
Summary
An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.
Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
  • An assertion check in BIND (that is meant to prevent going beyond the end of a buffer when processing incoming data) can be incorrectly triggered by a large response during zone transfer. Versions affected: BIND 9.16.0 -> 9.16.3
Assigner
isc
References
URL Tags
https://kb.isc.org/docs/cve-2020-8618 x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2020062… x_refsource_CONFIRM
https://usn.ubuntu.com/4399-1/ vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
Impacted products
Vendor Product Version
ISC BIND9 Affected: 9.16.0 -> 9.16.3
Create a notification for this product.
Date Public
2020-06-10 00:00
Show details on NVD website
To clipboard 

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      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-17T14:06:11Z",
      "cve": "CVE-2020-8618",
      "id": "CVE-2020-8618",
      "initial_release_date": "2023-02-15T04:01:10Z",
      "product_status:known_affected": "320",
      "product_status:known_not_affected": "107",
      "product_status:recommended": "842",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-8618",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-8618.json",
      "version": "34"
    }
  }
}



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Tags
Taxonomy of the tags.





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.