Vulnerability in Isc Bind
CVE-2018-5736
An error in zone database reference counting can lead to an assertion failure if a server which is running an affected version of BIND attempts several transfers of a slave zone in quick succession. This defect could be deliberately exercised by an attacker who is permitted to cause a vulnerable server to initiate zone transfers (for example: by sending valid NOTIFY messages), causing the named process to exit after failing the assertion test. Affects BIND 9.12.0 and 9.12.1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.180 (97.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.180 · newest: 0.180 · change: 0.000
Affected products
- Isc Bind — versions 9.12.0, 9.12.1
- NetApp Cloud Backup
- NetApp Data Ontap Edge
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/104386 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1040941 (VDB Entry, Third Party Advisory, vdb-entry)
- security.netapp.com/advisory/ntap-20180926-0004/ (Third Party Advisory)
- kb.isc.org/docs/aa-01602 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-5736?
- CVE-2018-5736 is a medium-severity vulnerability in Isc Bind, classified under Reachable Assertion. CVSS score: 5.3/10. Published 2019-01-16.
- How severe is CVE-2018-5736?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-5736 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.