USN-5332-2
Dashboard / Vulnerabilities / USN-5332-2
USN-5332-2
Published: 17 Mar 2022Last Modified: 29 Jun 2026
Upstream:
Aliases:
Summary: bind9 vulnerability
Details: USN-5332-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Xiang Li, Baojun Liu, Chaoyi Lu, and Changgen Zou discovered that Bind incorrectly handled certain bogus NS records when using forwarders. A remote attacker could possibly use this issue to manipulate cache results. (CVE-2021-25220)
References: https://ubuntu.com/security/notices/USN-5332-2, https://ubuntu.com/security/CVE-2021-25220
Affected packages
Package
Name: bind9
Purl: pkg:deb/ubuntu/bind9?arch=source&distro=trusty%2Fesm
Affected ranges
Type: ECOSYSTEM
Events:
Introduced- 0
Fixed -1:9.9.5.dfsg-3ubuntu0.19+esm6
Affected versions
1:9.9.3.dfsg.P2-4ubuntu1
1:9.9.3.dfsg.P2-4ubuntu2
1:9.9.3.dfsg.P2-4ubuntu3
1:9.9.5.dfsg-2
1:9.9.5.dfsg-3
1:9.9.5.dfsg-3ubuntu0.1
1:9.9.5.dfsg-3ubuntu0.2
1:9.9.5.dfsg-3ubuntu0.3
1:9.9.5.dfsg-3ubuntu0.4
1:9.9.5.dfsg-3ubuntu0.5
1:9.9.5.dfsg-3ubuntu0.6
1:9.9.5.dfsg-3ubuntu0.7
1:9.9.5.dfsg-3ubuntu0.8
1:9.9.5.dfsg-3ubuntu0.9
1:9.9.5.dfsg-3ubuntu0.10
1:9.9.5.dfsg-3ubuntu0.11
1:9.9.5.dfsg-3ubuntu0.12
1:9.9.5.dfsg-3ubuntu0.13
1:9.9.5.dfsg-3ubuntu0.14
1:9.9.5.dfsg-3ubuntu0.15
1:9.9.5.dfsg-3ubuntu0.16
1:9.9.5.dfsg-3ubuntu0.17
1:9.9.5.dfsg-3ubuntu0.18
1:9.9.5.dfsg-3ubuntu0.19
1:9.9.5.dfsg-3ubuntu0.19+esm1
1:9.9.5.dfsg-3ubuntu0.19+esm2
1:9.9.5.dfsg-3ubuntu0.19+esm3
1:9.9.5.dfsg-3ubuntu0.19+esm4
1:9.9.5.dfsg-3ubuntu0.19+esm5
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
