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CVE-2018-5736

An error in zone database reference counting can lead to an assertion failure if a server which...

5.3 MediumPublic exploitFix available

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

18.0%Up 16.9 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.3

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
CVE-2018-5736
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
3.5 LowAV:N/AC:M/Au:S/C:N/I:N/A:P
Weakness
CWE-617
Updated
2026-11-02
CVE List No score

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
CVE-2018-5736
Updated
2026-11-02
EUVDEUVD-2018-17505 No score

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
EUVD-2018-17505
Updated
2026-11-03
GitHub AdvisoriesGHSA-6p6q-g6w7-h5f9 5.3

An error in zone database reference counting can lead to an assertion failure if a server which...

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
GHSA-6p6q-g6w7-h5f9
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVALPINE-CVE-2018-5736 5.3

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
ALPINE-CVE-2018-5736
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVBELL-CVE-2018-5736 5.3

CVE-2018-5736 does not affect BellSoft software

Record
BELL-CVE-2018-5736
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 5.3

An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.

Record
CVE-2018-5736
CVSS 3.0
5.3 MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
bind
Alpine:v3.10
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.11
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.12
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.13
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.14
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.15
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.16
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.17
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.18
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.19
before 9.12.1_p2-r0
9.12.1_p2-r0
Show 7 moreShow less
Affected packages
PackageAffectedFixed
bind
Alpine:v3.20
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.21
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.22
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.23
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.24
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.8
before 9.12.1_p2-r0
9.12.1_p2-r0
bind
Alpine:v3.9
before 9.12.1_p2-r0
9.12.1_p2-r0

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
MetasploitDocker Container Escape Via runC Overwrite2019-01-01

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, Metasploit, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5736 is a medium vulnerability (CVSS 5.3) in Isc Bind, published January 16, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 18.0%, the 97th percentile. Fixed in bind 9.12.1_p2-r0.

References

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