7.5
HIGH
CVE-2023-4236
"BIND DNS-over-TLS Query Load DoS"
Description

A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load. This issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1.

INFO

Published Date :

Sept. 20, 2023, 1:15 p.m.

Last Modified :

Nov. 21, 2024, 8:34 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-4236 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Netapp h410c_firmware
2 Netapp h300s_firmware
3 Netapp h500s_firmware
4 Netapp h700s_firmware
5 Netapp h410s_firmware
6 Netapp h300s
7 Netapp h410s
8 Netapp h500s
9 Netapp h700s
10 Netapp h410c
1 Fedoraproject fedora
1 Debian debian_linux
1 Isc bind
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-4236.

URL Resource
http://www.openwall.com/lists/oss-security/2023/09/20/2 Mailing List Third Party Advisory
https://kb.isc.org/docs/cve-2023-4236 Vendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/ Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0004/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5504 Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/09/20/2 Mailing List Third Party Advisory
https://kb.isc.org/docs/cve-2023-4236 Vendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/ Mailing List
https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/ Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20231013-0004/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5504 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-4236 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-4236 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/20/2
    Added Reference https://kb.isc.org/docs/cve-2023-4236
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/
    Added Reference https://security.netapp.com/advisory/ntap-20231013-0004/
    Added Reference https://www.debian.org/security/2023/dsa-5504
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 01, 2024

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/ Mailing List
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20231013-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20231013-0004/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2023/dsa-5504 No Types Assigned https://www.debian.org/security/2023/dsa-5504 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 03, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 13, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20231013-0004/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 11, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/ [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 28, 2023

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/ [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 23, 2023

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2023/dsa-5504 [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 22, 2023

    Action Type Old Value New Value
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/09/20/2 No Types Assigned http://www.openwall.com/lists/oss-security/2023/09/20/2 Mailing List, Third Party Advisory
    Changed Reference Type https://kb.isc.org/docs/cve-2023-4236 No Types Assigned https://kb.isc.org/docs/cve-2023-4236 Vendor Advisory
    Added CWE NIST CWE-617
    Added CPE Configuration OR *cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* versions from (including) 9.18.0 up to (excluding) 9.18.18 *cpe:2.3:a:isc:bind:9.18.11:s1:*:*:supported_preview:*:*:* *cpe:2.3:a:isc:bind:9.18.18:s1:*:*:supported_preview:*:*:*
  • CVE Modified by [email protected]

    Sep. 20, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/09/20/2 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-4236 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-4236 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.10%

score

0.17687

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability