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7.5
CVSSv3

CVE-2020-8621

Published: 21/08/2020 Updated: 28/04/2022
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
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Vulnerability Summary

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. Servers that 'forward only' are not affected.

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isc bind

opensuse leap 15.1

opensuse leap 15.2

canonical ubuntu linux 18.04

canonical ubuntu linux 20.04

canonical ubuntu linux 16.04

synology dns server

netapp steelstore cloud integrated storage -

References

CWE-617https://kb.isc.org/docs/cve-2020-8621https://security.netapp.com/advisory/ntap-20200827-0003/https://usn.ubuntu.com/4468-1/https://security.gentoo.org/glsa/202008-19https://www.synology.com/security/advisory/Synology_SA_20_19http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.htmlhttps://nvd.nist.gov
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-21111CVE-2024-32884IDORCVE-2023-1000CVE-2024-33260CVE-2024-3682reflected XSSrace conditionCVE-2024-3400
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