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CVE-2018-5740

HIGH
Published 2019-01-16T20:00:00Z
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Expert Analysis

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CVSS Score

V3.0
7.5
/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.695
probability
of exploitation in the wild

There is a 69.5% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.985
Higher than 98.5% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Description

"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

ISC

BIND 9

Affected Versions:

BIND 9 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-rqpc-6vjv-w22p

Advisory Details

"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers. However, a defect in this feature makes it easy, when the feature is in use, to experience an assertion failure in name.c. Affects BIND 9.7.0->9.8.8, 9.9.0->9.9.13, 9.10.0->9.10.8, 9.11.0->9.11.4, 9.12.0->9.12.2, 9.13.0->9.13.2.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2018-5740
WEB https://access.redhat.com/errata/RHSA-2018:2570
WEB https://access.redhat.com/errata/RHSA-2018:2571
WEB https://kb.isc.org/docs/aa-01639
WEB https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html
WEB https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html
WEB https://security.gentoo.org/glsa/201903-13
WEB https://security.netapp.com/advisory/ntap-20180926-0003
WEB https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us
WEB https://usn.ubuntu.com/3769-1
WEB https://usn.ubuntu.com/3769-2
WEB http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html
WEB http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html
WEB http://www.securityfocus.com/bid/105055
WEB http://www.securitytracker.com/id/1041436

Advisory provided by GitHub Security Advisory Database. Published: May 13, 2022, Modified: May 13, 2022

References

http://www.securityfocus.com/bid/105055
https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html
https://access.redhat.com/errata/RHSA-2018:2570
https://access.redhat.com/errata/RHSA-2018:2571
https://usn.ubuntu.com/3769-2/
http://www.securitytracker.com/id/1041436
https://security.netapp.com/advisory/ntap-20180926-0003/
https://kb.isc.org/docs/aa-01639
https://usn.ubuntu.com/3769-1/
https://security.gentoo.org/glsa/201903-13
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us
https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html
Published: 2019-01-16T20:00:00Z
Last Modified: 2024-09-16T17:58:43.029Z
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