An error processing RPZ rules can cause named to loop endlessly after handling a query
Priority MEDIUM 40CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
If named is configured to use Response Policy Zones (RPZ) an error processing some rule types can lead to a condition where BIND will endlessly loop while handling a query. Affects BIND 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1.
Why it matters now
EPSS 0.12184 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ISC | BIND 9 | 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1 | — | No fix listed | CNA |
- BIND 9 VendorISC Affected 9.9.10, 9.10.5, 9.11.0->9.11.1, 9.9.10-S1, 9.10.5-S1 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* | 9.11.0 – 9.11.1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.10:*:*:*:*:*:*:* | 9.9.10 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.9.10:s1:*:*:*:*:*:* | 9.9.10 s1 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.10.5:*:*:*:*:*:*:* | 9.10.5 | Vulnerable | ISC |
| cpe:2.3:a:isc:bind:9.10.5:s1:*:*:*:*:*:* | 9.10.5 s1 | Vulnerable | ISC |
| cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* Versions 9.11.0 – 9.11.1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.10:*:*:*:*:*:*:* Versions 9.9.10 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.9.10:s1:*:*:*:*:*:* Versions 9.9.10 s1 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.10.5:*:*:*:*:*:*:* Versions 9.10.5 Vulnerable ·ISC
- cpe:2.3:a:isc:bind:9.10.5:s1:*:*:*:*:*:* Versions 9.10.5 s1 Vulnerable ·ISC
- cpe:2.3:a:netapp:data_ontap_edge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2017-3140
- 2026-10-03 Alias added: GHSA-6f7c-h629-3xqv
References
More ISC Bind vulnerabilities
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2023-27571 Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related… CVSS 3.1HIGH 7.5
- TI-2021-07476 A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack CVSS 3.1CRITICAL 9.8
- TI-2023-27773 The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance… CVSS 3.1HIGH 7.5
- TI-2020-06910 A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c CVSS 3.1HIGH 7.5
- TI-2016-02320 buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x… CVSS 3.0HIGH 7.5
Sources
- CVE-2017-3140 · CVE Program
- CVE-2017-3140 · NVD
- FIRST EPSS
- GHSA-6f7c-h629-3xqv · GitHub Advisory Database · CC BY 4.0
- CVE-2017-3140 · Red Hat security data · CC BY 4.0
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