7.5
HIGH
CVE-2018-5743
BIND TCP Connection Overflow
Description

By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.

INFO

Published Date :

Oct. 9, 2019, 4:15 p.m.

Last Modified :

Nov. 7, 2023, 2:58 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2018-5743 has a 8 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-5743 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 F5 big-ip_access_policy_manager
2 F5 big-ip_advanced_firewall_manager
3 F5 big-ip_analytics
4 F5 big-ip_application_acceleration_manager
5 F5 big-ip_application_security_manager
6 F5 big-ip_domain_name_system
7 F5 big-ip_fraud_protection_service
8 F5 big-ip_global_traffic_manager
9 F5 big-ip_link_controller
10 F5 big-ip_local_traffic_manager
11 F5 big-ip_policy_enforcement_manager
12 F5 big-ip_edge_gateway
13 F5 big-ip_webaccelerator
14 F5 enterprise_manager
15 F5 big-iq_centralized_management
16 F5 iworkflow
1 Isc bind
: Total Affected Vendor : 2 | Products : 17
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-2018-5743.

URL Resource
https://kb.isc.org/docs/cve-2018-5743 Third Party Advisory
https://support.f5.com/csp/article/K74009656?utm_source=f5support&amp%3Butm_medium=RSS
https://www.synology.com/security/advisory/Synology_SA_19_20

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).

Profile Photo
psmedley/bind-os2

None

Emacs Lisp Makefile C Shell Roff HTML C++ XSLT Perl Python

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 6, 2024, 9:22 a.m. This repo has been linked 35 different CVEs too.
Profile Photo
balabit-deps/balabit-os-9-bind9-libs

None

Emacs Lisp Makefile C Shell Roff HTML C++ XSLT Perl Python

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 15, 2022, 10:19 a.m. This repo has been linked 25 different CVEs too.
Profile Photo
balabit-deps/balabit-os-8-bind9-libs

None

Emacs Lisp Makefile C Shell Roff HTML C++ XSLT Perl Python

Updated: 1 year, 10 months ago
0 stars 0 fork 0 watcher
Born at : Nov. 11, 2022, 1:15 p.m. This repo has been linked 23 different CVEs too.
Profile Photo
vincent-deng/veracode-container-security-finding-parser

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 8 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.
Profile Photo
pexip/os-bind9-libs

Packaging for bind9-libs

Emacs Lisp Makefile C Shell Roff HTML C++ XSLT Perl Python

Updated: 3 months, 4 weeks ago
0 stars 0 fork 0 watcher
Born at : June 21, 2022, 1:57 p.m. This repo has been linked 25 different CVEs too.
Profile Photo
bg6cq/bind9

bind9.14 mirror

Makefile Shell C Roff HTML C++ XSLT Perl Python Batchfile

Updated: 4 years, 8 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 21, 2019, 7:42 a.m. This repo has been linked 6 different CVEs too.
Profile Photo
sischkg/dnsonsen_advent_calendar

None

Updated: 4 years, 9 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 8, 2019, 11:56 a.m. This repo has been linked 2 different CVEs too.
Profile Photo
Seabreg/bind

None

Emacs Lisp Makefile Shell C M4 Roff HTML

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Sept. 7, 2019, 1:28 a.m. This repo has been linked 3 different CVEs too.

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

The following list is the news that have been mention CVE-2018-5743 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-5743 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 [email protected]

    May. 14, 2024

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

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Internet Systems Consortium (ISC) https://support.f5.com/csp/article/K74009656?utm_source=f5support&amp%3Butm_medium=RSS [No types assigned]
    Removed Reference Internet Systems Consortium (ISC) https://support.f5.com/csp/article/K74009656?utm_source=f5support&utm_medium=RSS
  • CVE Modified by [email protected]

    Dec. 18, 2019

    Action Type Old Value New Value
    Added Reference https://www.synology.com/security/advisory/Synology_SA_19_20 [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 01, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://kb.isc.org/docs/cve-2018-5743 No Types Assigned https://kb.isc.org/docs/cve-2018-5743 Third Party Advisory
    Changed Reference Type https://support.f5.com/csp/article/K74009656?utm_source=f5support&utm_medium=RSS No Types Assigned https://support.f5.com/csp/article/K74009656?utm_source=f5support&utm_medium=RSS Third Party Advisory
    Added CWE NIST CWE-770
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_local_traffic_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_application_acceleration_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_advanced_firewall_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_analytics:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_access_policy_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.1 *cpe:2.3:a:f5:big-ip_application_security_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_edge_gateway:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_fraud_protection_service:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_global_traffic_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 13.0.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_link_controller:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_webaccelerator:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_policy_enforcement_manager:15.0.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* versions from (including) 9.9.0 up to (including) 9.10.8 *cpe:2.3:a:isc:bind:9.9.3:s1:*:*:supported_preview:*:*:* *cpe:2.3:a:isc:bind:9.10.8:p1:*:*:*:*:*:* *cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* versions from (including) 9.11.0 up to (including) 9.11.6 *cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:* *cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:* *cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* versions from (including) 9.12.0 up to (including) 9.12.4 *cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* versions from (including) 9.13.0 up to (including) 9.13.7 *cpe:2.3:a:isc:bind:9.14.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:enterprise_manager:3.1.1:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 5.4.0 *cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.1.0
    Added CPE Configuration OR *cpe:2.3:a:f5:iworkflow:2.3.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 11.5.2 up to (including) 11.6.5 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 12.1.0 up to (including) 12.1.4 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 13.1.0 up to (including) 13.1.1 *cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* versions from (including) 14.0.0 up to (including) 14.1.0 *cpe:2.3:a:f5:big-ip_domain_name_system:15.0.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 23, 2019

    Action Type Old Value New Value
    Added Reference https://support.f5.com/csp/article/K74009656?utm_source=f5support&utm_medium=RSS [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-2018-5743 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-2018-5743 weaknesses.

CAPEC-125: Flooding Flooding CAPEC-130: Excessive Allocation Excessive Allocation CAPEC-147: XML Ping of the Death XML Ping of the Death CAPEC-197: Exponential Data Expansion Exponential Data Expansion CAPEC-229: Serialized Data Parameter Blowup Serialized Data Parameter Blowup CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-469: HTTP DoS HTTP DoS CAPEC-482: TCP Flood TCP Flood CAPEC-486: UDP Flood UDP Flood CAPEC-487: ICMP Flood ICMP Flood CAPEC-488: HTTP Flood HTTP Flood CAPEC-489: SSL Flood SSL Flood CAPEC-490: Amplification Amplification CAPEC-491: Quadratic Data Expansion Quadratic Data Expansion CAPEC-493: SOAP Array Blowup SOAP Array Blowup CAPEC-494: TCP Fragmentation TCP Fragmentation CAPEC-495: UDP Fragmentation UDP Fragmentation CAPEC-496: ICMP Fragmentation ICMP Fragmentation CAPEC-528: XML Flood XML Flood
Exploit Prediction

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

0.20 }} -0.03%

score

0.58209

percentile

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