CVE-2021-25218
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.59%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.59% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-617
- Affected
- isc/bind · fedoraproject/fedora
- Source
- security-officer@isc.org
References
- http://www.openwall.com/lists/oss-security/2021/08/18/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/20/2Mailing List, Patch, Third Party Advisory
- https://kb.isc.org/v1/docs/cve-2021-25218Exploit, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/
- https://security.netapp.com/advisory/ntap-20210909-0002/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/18/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/20/2Mailing List, Patch, Third Party Advisory
- https://kb.isc.org/v1/docs/cve-2021-25218Exploit, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZPJCLGSR4BTGFLBLGIE5TEQP2SNJKGVL/
- https://security.netapp.com/advisory/ntap-20210909-0002/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.