Vulnerability Monitor

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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

2020-05-19T14:15:11.877

Last Modified

2024-11-21T05:39:07.857

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-400
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application isc bind ≤ 9.11.18 Yes
Application isc bind ≤ 9.12.4 Yes
Application isc bind ≤ 9.13.7 Yes
Application isc bind ≤ 9.14.11 Yes
Application isc bind ≤ 9.15.6 Yes
Application isc bind ≤ 9.16.2 Yes
Application isc bind ≤ 9.17.1 Yes
Application isc bind 9.12.4 Yes
Application isc bind 9.12.4 Yes
Application isc bind 9.9.3 Yes
Application isc bind 9.10.5 Yes
Application isc bind 9.10.7 Yes
Application isc bind 9.11.3 Yes
Application isc bind 9.11.5 Yes
Application isc bind 9.11.5 Yes
Application isc bind 9.11.6 Yes
Application isc bind 9.11.7 Yes
Application isc bind 9.11.8 Yes
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
References