Bug 2263897 (CVE-2023-5517) - CVE-2023-5517 bind9: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled
Summary: CVE-2023-5517 bind9: Querying RFC 1918 reverse zones may cause an assertion f...
Keywords:
Status: NEW
Alias: CVE-2023-5517
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2264063 2264360
Blocks: 2263895
TreeView+ depends on / blocked
 
Reported: 2024-02-12 17:06 UTC by Marco Benatto
Modified: 2024-04-30 14:37 UTC (History)
1 user (show)

Fixed In Version: bind 9.16.48, bind 9.18.24, bind 9.19.21
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the bind package which may result in a Denial of Service in `named` process. This is a result of a reachable assertion, leading `named` to prematurely terminate when both conditions are met: nxdomain-redirect for the queried domain is configured and the resolver receives a PTR query, used for a reverse DNS lookup, for a RFC 1918 address that would normally result in an authoritative `NXDOMAIN` response. A single query matching both conditions can lead to a Denial of Service in the named application.
Clone Of:
Environment:
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2024:1792 0 None None None 2024-04-11 19:32:12 UTC
Red Hat Product Errata RHSA-2024:1647 0 None None None 2024-04-02 20:49:38 UTC
Red Hat Product Errata RHSA-2024:1648 0 None None None 2024-04-02 20:50:29 UTC
Red Hat Product Errata RHSA-2024:1781 0 None None None 2024-04-11 10:59:44 UTC
Red Hat Product Errata RHSA-2024:1789 0 None None None 2024-04-11 17:43:08 UTC
Red Hat Product Errata RHSA-2024:1800 0 None None None 2024-04-15 01:26:29 UTC
Red Hat Product Errata RHSA-2024:1803 0 None None None 2024-04-15 01:47:20 UTC
Red Hat Product Errata RHSA-2024:2551 0 None None None 2024-04-30 14:37:38 UTC

Description Marco Benatto 2024-02-12 17:06:08 UTC 
A flaw in query-handling code can cause named to exit prematurely with an assertion failure when:

- nxdomain-redirect <domain>; is configured, and
- the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.
Comment 3 Dhananjay Arunesh 2024-02-13 16:41:19 UTC 
Created bind tracking bugs for this issue:

Affects: fedora-all [bug 2264063]
Comment 5 Dhananjay Arunesh 2024-02-15 08:11:54 UTC 
Created dhcp tracking bugs for this issue:

Affects: fedora-all [bug 2264360]
Comment 7 errata-xmlrpc 2024-04-02 20:49:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:1647 https://access.redhat.com/errata/RHSA-2024:1647
Comment 8 errata-xmlrpc 2024-04-02 20:50:27 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:1648 https://access.redhat.com/errata/RHSA-2024:1648
Comment 9 errata-xmlrpc 2024-04-11 10:59:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2024:1781 https://access.redhat.com/errata/RHSA-2024:1781
Comment 10 errata-xmlrpc 2024-04-11 17:43:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:1789 https://access.redhat.com/errata/RHSA-2024:1789
Comment 11 errata-xmlrpc 2024-04-15 01:26:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2024:1800 https://access.redhat.com/errata/RHSA-2024:1800
Comment 12 errata-xmlrpc 2024-04-15 01:47:19 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:1803 https://access.redhat.com/errata/RHSA-2024:1803
Comment 13 errata-xmlrpc 2024-04-30 14:37:37 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2551 https://access.redhat.com/errata/RHSA-2024:2551
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