Bug 2164039 (CVE-2022-3924) - CVE-2022-3924 bind: sending specific queries to the resolver may cause a DoS
Summary: CVE-2022-3924 bind: sending specific queries to the resolver may cause a DoS
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-3924
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: 2164398 2164399 2164406 2164508
Blocks: 2164033
TreeView+ depends on / blocked
 
Reported: 2023-01-24 14:56 UTC by Marian Rehak
Modified: 2023-05-16 16:33 UTC (History)
3 users (show)

Fixed In Version: bind 9.16.37, bind 9.18.11, bind 9.19.9
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Bind. When resolver receives many queries requiring recursion, there will be a corresponding increase in the number of clients waiting for recursion to complete. This may, under certain conditions, lead to an assertion failure and a denial of service.
Clone Of:
Environment:
Last Closed: 2023-05-16 16:33:55 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:2261 0 None None None 2023-05-09 07:23:43 UTC
Red Hat Product Errata RHSA-2023:2792 0 None None None 2023-05-16 08:12:40 UTC

Description Marian Rehak 2023-01-24 14:56:55 UTC 
If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM recursive-clients limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure.
Comment 3 Marian Rehak 2023-01-25 16:03:22 UTC 
Created bind tracking bugs for this issue:

Affects: fedora-all [bug 2164508]
Comment 4 errata-xmlrpc 2023-05-09 07:23:42 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 5 errata-xmlrpc 2023-05-16 08:12:38 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 6 Product Security DevOps Team 2023-05-16 16:33:52 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-2022-3924
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