Bug 2128584 (CVE-2022-2795) - CVE-2022-2795 bind: processing large delegations may severely degrade resolver performance
Summary: CVE-2022-2795 bind: processing large delegations may severely degrade resolve...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-2795
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2128705 2128707 2128743 2128744 2128745 2128746 2128747
Blocks: 2128582
TreeView+ depends on / blocked
 
Reported: 2022-09-21 07:36 UTC by Marian Rehak
Modified: 2024-05-07 07:24 UTC (History)
12 users (show)

Fixed In Version: bind 9.16.33, bind 9.18.7, bind 9.19.5
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in bind. When flooding the target resolver with special queries, an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
Clone Of:
Environment:
Last Closed: 2023-01-26 14:52:14 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:0402 0 None None None 2023-01-24 10:10:15 UTC
Red Hat Product Errata RHSA-2023:2261 0 None None None 2023-05-09 07:23:38 UTC
Red Hat Product Errata RHSA-2023:2792 0 None None None 2023-05-16 08:12:35 UTC
Red Hat Product Errata RHSA-2023:3002 0 None None None 2023-05-16 08:41:21 UTC
Red Hat Product Errata RHSA-2024:2720 0 None None None 2024-05-07 07:24:25 UTC

Description Marian Rehak 2022-09-21 07:36:02 UTC 
By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
Comment 1 Marian Rehak 2022-09-21 12:59:34 UTC 
Created bind tracking bugs for this issue:

Affects: fedora-all [bug 2128705]


Created dhcp tracking bugs for this issue:

Affects: fedora-all [bug 2128707]
Comment 4 errata-xmlrpc 2023-01-24 10:10:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2023:0402 https://access.redhat.com/errata/RHSA-2023:0402
Comment 5 Product Security DevOps Team 2023-01-26 14:52:11 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-2795
Comment 6 errata-xmlrpc 2023-05-09 07:23:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2261 https://access.redhat.com/errata/RHSA-2023:2261
Comment 7 errata-xmlrpc 2023-05-16 08:12:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:2792 https://access.redhat.com/errata/RHSA-2023:2792
Comment 8 errata-xmlrpc 2023-05-16 08:41:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:3002 https://access.redhat.com/errata/RHSA-2023:3002
Comment 10 errata-xmlrpc 2024-05-07 07:24:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:2720 https://access.redhat.com/errata/RHSA-2024:2720
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