CVE-2018-5734
While handling a particular type of malformed packet BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 6.29% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- isc/bind · netapp/data ontap edge · netapp/solidfire element os management node
- Source
- security-officer@isc.org
EPSS 6.3% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/103189Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040438Third Party Advisory, VDB Entry
- https://kb.isc.org/docs/aa-01562Vendor Advisory
- https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory
- http://www.securityfocus.com/bid/103189Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040438Third Party Advisory, VDB Entry
- https://kb.isc.org/docs/aa-01562Vendor Advisory
- https://security.netapp.com/advisory/ntap-20180926-0005/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.