CVE-2021-25220
Published: August 31, 2023Last modified: August 31, 2023
Description
BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | CHANGED |
| Confidentiality | NONE |
| Integrity impact | HIGH |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | bind | Not affected (9.18.16-r0) |
| Stream | bind | Not affected (9.18.18-r0) |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
- https://kb.isc.org/v1/docs/cve-2021-25220
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2SXT7247QTKNBQ67MNRGZD23ADXU6E5U/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5VX3I2U3ICOIEI5Y7OYA6CHOLFMNH3YQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/API7U5E7SX7BAAVFNW366FFJGD6NZZKV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DE3UAVCPUMAKG27ZL5YXSP2C3RIOW3JZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYD7US4HZRFUGAJ66ZTHFBYVP5N3OQBY/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/2SXT7247QTKNBQ67MNRGZD23ADXU6E5U/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/5VX3I2U3ICOIEI5Y7OYA6CHOLFMNH3YQ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/API7U5E7SX7BAAVFNW366FFJGD6NZZKV/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/DE3UAVCPUMAKG27ZL5YXSP2C3RIOW3JZ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/NYD7US4HZRFUGAJ66ZTHFBYVP5N3OQBY/
- https://security.gentoo.org/glsa/202210-25
- https://security.netapp.com/advisory/ntap-20220408-0001/
- https://supportportal.juniper.net/s/article/2022-10-Security-Bulletin-Junos-OS-SRX-Series-Cache-poisoning-vulnerability-in-BIND-used-by-DNS-Proxy-CVE-2021-25220?language=en_US