CVE-2018-5740
"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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 59.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 59.62% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- isc/bind · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux workstation · debian/debian linux · netapp/data ontap edge · canonical/ubuntu linux · hp/hp-ux · opensuse/leap
- Source
- security-officer@isc.org
EPSS 59.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/105055Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041436Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2570Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2571Third Party Advisory
- https://kb.isc.org/docs/aa-01639Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00033.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00001.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-13Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180926-0003/Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_usThird Party Advisory
- https://usn.ubuntu.com/3769-1/Third Party Advisory
- https://usn.ubuntu.com/3769-2/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/105055Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041436Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:2570Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2571Third Party Advisory
- https://kb.isc.org/docs/aa-01639Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00033.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00001.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-13Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180926-0003/Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_usThird Party Advisory
- https://usn.ubuntu.com/3769-1/Third Party Advisory
- https://usn.ubuntu.com/3769-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.