medium
4.9
CWE
327
Advisory Published
CVE Published
Updated

CVE-2018-5745: An assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys

First published: Wed Feb 20 2019(Updated: )

ISC BIND is vulnerable to a denial of service, caused by an error in the managed-keys feature. By replacing a trust anchor's keys with keys which use an unsupported algorithm, a remote authenticated attacker could exploit this vulnerability to cause an assertion failure.

Credit: security-officer@isc.org

Affected SoftwareAffected VersionHow to fix
redhat/bind<9.11.5
9.11.5
redhat/bind<9.12.3
9.12.3
IBM Data Risk Manager<=2.0.6
ISC BIND 9>=9.9.0<=9.10.7
ISC BIND 9>=9.11.0<=9.11.4
ISC BIND 9>=9.12.0<=9.12.2
ISC BIND 9>=9.13.0<=9.13.6
ISC BIND=9.9.3-s1
ISC BIND 9=9.10.7
ISC BIND 9=9.10.8-p1
ISC BIND 9=9.11.5
ISC BIND 9=9.11.5-p1
ISC BIND=9.11.5-s3
ISC BIND 9=9.12.3
ISC BIND 9=9.12.3-p1

Remedy

Upgrade to a version of BIND containing a fix preventing the assertion failure. >= BIND 9.11.5-P4 >= BIND 9.12.3-P4 BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers. >= BIND 9.11.5-S5

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2018-5745?

    CVE-2018-5745 is classified as a denial-of-service vulnerability that can lead to assertion failures in ISC BIND.

  • How do I fix CVE-2018-5745?

    To mitigate CVE-2018-5745, upgrade ISC BIND to version 9.11.5 or 9.12.3 or apply the necessary patches.

  • Which versions of ISC BIND are affected by CVE-2018-5745?

    CVE-2018-5745 affects versions of ISC BIND from 9.9.0 up to and including 9.12.2.

  • Can CVE-2018-5745 be exploited remotely?

    Yes, CVE-2018-5745 can be exploited remotely by an authenticated attacker.

  • Is CVE-2018-5745 related to key management in ISC BIND?

    Yes, CVE-2018-5745 is related to an error in the managed-keys feature of ISC BIND.

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