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: 2024-12-04 04:04 UTC (History)
12 users (show)

Fixed In Version: bind 9.16.33, bind 9.18.7, bind 9.19.5
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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