Use of a broken or risky cryptographic algorithm in ISC BIND - CVE-2018-5745

Vulnerability details

The vulnerability allows a remote privileged user to perform a denial of service (DoS) attack.

"managed-keys" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit due to an assertion failure if, during key rollover, a trust anchor's keys are replaced with keys which use an unsupported algorithm. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.

Affected software

How to mitigate CVE-2018-5745

External References

• https://access.redhat.com/errata/RHSA-2019:3552
• https://kb.isc.org/docs/cve-2018-5745

Related Security Bulletins

• Use of a broken or risky cryptographic algorithm in ISC BIND
• OpenSUSE Linux update for bind
• OpenSUSE Linux update for bind
• Use of a broken or risky cryptographic algorithm in bind (Alpine package)
• Arch Linux update for bind
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• Red Hat Enterprise Linux 8 update for bind
• Red Hat Enterprise Linux 7 update for bind
• Fedora 29 update for bind
• Fedora 28 update for bind