A too-strict assertion check could be triggered when responses in BIND 9.16.19 and 9.17.16 require UDP fragmentation if RRL is in use (ISC BIND9)
At a glance
- Source
- NVD
- EPSS
- EPSS 3.66 % · percentile 90 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- isc
- NVD status
- Modified
Description
In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.
Weaknesses (CWE)
- CWE-617 — Reachable Assertion
References
- https://kb.isc.org/v1/docs/cve-2021-25218
- http://www.openwall.com/lists/oss-security/2021/08/18/3
- http://www.openwall.com/lists/oss-security/2021/08/20/2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/
- https://security.netapp.com/advisory/ntap-20210909-0002/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | isc |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · security-officer@isc.org (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/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) |
European references
- ENISA EUVD · EUVD-2021-12129
- GCVE · GCVE-0-2021-25218
CERT-FR advisories
- CERTFR-2021-AVI-644 — Vulnérabilité dans ISC BIND · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:isc:bind:9.16.19:*:*:*:-:*:*:*cpe:2.3:a:isc:bind:9.17.16:*:*:*:-:*:*:*cpe:2.3:a:isc:bind:9.17.16:s1:*:*:supported_preview:*:*:*cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| ISC · BIND9 | affected Stable Branch 9.16.19 ; affected Development Branch 9.17.16 ; affected Supported Preview Edition 9.16.19-S1 |
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 |