CVE-2021-25220 log

Source	CVE Red Hat MITRE NVD Debian Ubuntu SUSE Alpine Mageia CVE Details CIRCL Bugs Arch Linux Red Hat Gentoo SUSE GitHub Lists oss-security full-disclosure bugtraq Misc GitHub code web search
Severity	Medium
Remote	Yes
Type	Content spoofing
Description	When using forwarders in BIND, bogus NS records supplied by, or via, those forwarders may be cached and used by named if it needs to recurse for any reason, causing it to obtain and pass on potentially incorrect answers. 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. Authoritative-only BIND 9 servers are not vulnerable to this flaw.

Group	Package	Affected	Fixed	Severity	Status	Ticket
AVG-2661	bind	9.18.0-1	9.18.1-1	High	Fixed

Date	Advisory	Group	Package	Severity	Type
04 Apr 2022	ASA-202204-5	AVG-2661	bind	High	multiple issues

References
https://kb.isc.org/docs/cve-2021-25220 https://gitlab.isc.org/isc-projects/bind9/-/commit/fc9cb6cf91c1a36b797ffef0a277dbb3989d43dc

Notes
Workarounds: If applicable, modify your configuration to either remove all forwarding or all possibility of recursion. Depending on your use-case, it may be possible to use other zone types to replace forward zones.

Notes

Workarounds:

If applicable, modify your configuration to either remove all forwarding or all possibility of recursion. Depending on your use-case, it may be possible to use other zone types to replace forward zones.