Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2020-8616

A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and The attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor.

  • Published: May 19, 2020
  • Updated: Apr 14, 2023
  • CVE: CVE-2020-8616
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.6
  • AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
isc / bind 9.12.0 9.12.4.x
isc / bind 9.12.4-p1 9.12.4-p1.x
isc / bind 9.13.0 9.13.7.x
isc / bind 9.12.4-p2 9.12.4-p2.x
isc / bind 9.17.0 9.17.1.x
isc / bind 9.16.0 9.16.2.x
isc / bind 9.14.0 9.14.11.x
isc / bind 9.0.0 9.11.18.x
isc / bind 9.15.0 9.15.6.x
isc / bind 9.11.7-s1 9.11.7-s1.x
isc / bind 9.11.3-s1 9.11.3-s1.x
isc / bind 9.11.6-s1 9.11.6-s1.x
isc / bind 9.10.5-s1 9.10.5-s1.x
isc / bind 9.11.5-s5 9.11.5-s5.x
isc / bind 9.11.5-s3 9.11.5-s3.x
isc / bind 9.9.3-s1 9.9.3-s1.x
isc / bind 9.10.7-s1 9.10.7-s1.x
isc / bind 9.11.8-s1 9.11.8-s1.x
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x