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CVE-2018-5743

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.

Risk Information

Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
1.766

Associated Vulnerability

VulnerabilityOS Platform
Vulnerability CVE-2018-5743,CVE-2019-6467 are affected in BIND 9.14.0Windows
Internet Domain Name Server (USN-3956-1) bind9_9.10.3.dfsg.P4-8ubuntu1.14_i386.debLinux
Internet Domain Name Server (USN-3956-1) bind9_9.10.3.dfsg.P4-8ubuntu1.14_amd64.debLinux
bind9 security update(DSA-4089-1) bind9_9.10.3.dfsg.P4-12.3+deb9u5_i386.debLinux
bind9 security update(DSA-4089-1) bind9_9.10.3.dfsg.P4-12.3+deb9u5_amd64.debLinux
bind9 security update(DSA-4440-1) bind9_9.10.3.dfsg.P4-12.3+deb9u5_i386.debLinux
bind9 security update(DSA-4440-1) bind9_9.10.3.dfsg.P4-12.3+deb9u5_amd64.debLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) bind-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) bind-debugsource-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) bind-utils-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) bind-utils-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libbind9-160-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libbind9-160-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libdns169-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libdns169-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libirs160-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libirs160-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisc166-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisc166-32bit-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisc166-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisc166-debuginfo-32bit-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisccc160-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisccc160-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisccfg160-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) libisccfg160-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) liblwres160-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) liblwres160-debuginfo-9.11.2-3.10.1.x86_64.rpmLinux
SUSE-SU-2019:2502-1(SUSE Linux Enterprise Desktop 12-SP4 ) python-bind-9.11.2-3.10.1.noarch.rpmLinux
Allocation of Resources Without Limits or Throttling Vulnerability (CVE-2018-5743)NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234