VulnerabilityModified

CVE-2020-8621

In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash.

HIGH 7.5EPSS 2.97%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.97%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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: 2.97% probability · 86th percentile
CISA KEV: Not listed
Weakness: CWE-617
Affected: isc/bind · opensuse/leap · canonical/ubuntu linux · synology/dns server · netapp/steelstore cloud integrated storage
Source: security-officer@isc.org

References

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2020-8621Vendor Advisory
https://security.gentoo.org/glsa/202008-19Third Party Advisory
https://security.netapp.com/advisory/ntap-20200827-0003/Third Party Advisory
https://usn.ubuntu.com/4468-1/Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_19Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlMailing List, Third Party Advisory
https://kb.isc.org/docs/cve-2020-8621Vendor Advisory
https://security.gentoo.org/glsa/202008-19Third Party Advisory
https://security.netapp.com/advisory/ntap-20200827-0003/Third Party Advisory
https://usn.ubuntu.com/4468-1/Third Party Advisory
https://www.synology.com/security/advisory/Synology_SA_20_19Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.