CVE-2018-5744

A specially crafted packet can cause named to leak memory

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected.

Se puede presentar un fallo al liberar memoria cuando se procesan mensajes que tienen una combinación específica de opciones EDNS. Las versiones afectadas son: BIND 9.10.7 hasta 9.10.8-P1, 9.11.3 hasta 9.11.5-P1, 9.12.0 hasta 9.12.3-P1, y las versiones 9.10.7-S1 hasta 9.11.5-S3 de BIND 9 Supported Preview Edition. Las versiones 9.13.0 hasta 9.13.6 de la rama de desarrollo 9.13 también están afectadas.

Toshifumi Sakaguchi discovered that Bind incorrectly handled memory. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. Various other issues were also addressed.

*Credits: ISC would like to thank Toshifumi Sakaguchi for reporting this issue to us.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-01-17 CVE Reserved
2019-02-22 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-772: Missing Release of Resource after Effective Lifetime

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.isc.org/docs/cve-2018-5744	2019-11-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.10.7 < 9.10.8 Search vendor "Isc" for product "Bind" and version " >= 9.10.7 < 9.10.8"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.11.3 < 9.11.5 Search vendor "Isc" for product "Bind" and version " >= 9.11.3 < 9.11.5"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.12.0 < 9.12.3 Search vendor "Isc" for product "Bind" and version " >= 9.12.0 < 9.12.3"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.13.0 < 9.13.6 Search vendor "Isc" for product "Bind" and version " >= 9.13.0 < 9.13.6"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.7 Search vendor "Isc" for product "Bind" and version "9.10.7"		s1, supported_preview		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		rc1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		rc2		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		rc1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		s3, supported_preview		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		rc1		Affected