CVE-2018-5740
What it is
"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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 60.2% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 60.2% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 60.2% · EPSS, next 30 days
- Weakness
- CWE-617
- Record status
- Modified
Affected
- Isc Bind < 9.8.8
- Isc Bind < 9.9.13
- Isc Bind < 9.10.8
- Isc Bind < 9.11.4
- Isc Bind < 9.12.2
- Isc Bind < 9.13.2
- Redhat Enterprise Linux Desktop 6.0
- Redhat Enterprise Linux Desktop 7.0
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2018-5740.md and follow it. Check whether this project is affected by CVE-2018-5740. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html
- http://www.securityfocus.com/bid/105055
- http://www.securitytracker.com/id/1041436
- https://access.redhat.com/errata/RHSA-2018:2570
- https://access.redhat.com/errata/RHSA-2018:2571
- https://kb.isc.org/docs/aa-01639
- https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html
- https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html
- https://security.gentoo.org/glsa/201903-13
- https://security.netapp.com/advisory/ntap-20180926-0003/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03927en_us
- https://usn.ubuntu.com/3769-1/
- https://usn.ubuntu.com/3769-2/
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00027.html
- http://www.securityfocus.com/bid/105055
- http://www.securitytracker.com/id/1041436
- https://access.redhat.com/errata/RHSA-2018:2570
- https://access.redhat.com/errata/RHSA-2018:2571
- https://kb.isc.org/docs/aa-01639
- https://lists.debian.org/debian-lts-announce/2018/08/msg00033.html
- https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html
- https://security.gentoo.org/glsa/201903-13
- https://security.netapp.com/advisory/ntap-20180926-0003/