CVE-2018-5734

A malformed request can trigger an assertion failure in badcache.c

At a glance

Severity: HIGH 7.5
EPSS: EPSS 6.29 % · percentile 94 (2026-10-27)
State: PUBLISHED
Published: 2019-01-16
Updated: 2024-09-17
Assigner: isc
NVD status: Modified

Description

While handling a particular type of malformed packet BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode. If the receiving view has the SERVFAIL cache feature enabled, this can trigger an assertion failure in badcache.c when the request doesn't contain all of the expected information. Affects BIND 9.10.5-S1 to 9.10.5-S4, 9.10.6-S1, 9.10.6-S2.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	HIGH 7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	isc
CVSS 3.0	HIGH 7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · security-officer@isc.org (Secondary)
CVSS 3.0	HIGH 7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-617

European references

ENISA EUVD · EUVD-2018-17503
GCVE · GCVE-0-2018-5734

CERT-FR advisories

CERTFR-2018-AVI-105 — Vulnérabilité dans ISC BIND · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:isc:bind:9.10.5:s1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.10.5:s4:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.10.6:s1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.10.6:s2:*:*:*:*:*:*
cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire_element_os_management_node:-:*:*:*:*:*:*:*

Affected products

Product	Versions
ISC · BIND 9	affected 9.10.5-S1 to 9.10.5-S4, 9.10.6-S1, 9.10.6-S2

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD