UpHeron
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Servers and applications

CVE-2018-5734

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.

Severity
High 7.5
Published
16 Jan 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
6.4% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
CWE-617
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
BIND 9Servers and applications · cpe:a:isc:bind
  • Version 9.10.5-s1
  • Version 9.10.5-s4
  • Version 9.10.6-s1
  • Version 9.10.6-s2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-5734
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-5734