CVE-2020-8620

HIGH
7.5
CVSS Score
Published: August 21, 2020 at 08:50 PM UTC
Updated: June 17, 2026 at 03:26 AM UTC
4 products affected across 4 vendorsUbuntu LinuxLeapBIND

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Severity
HIGH7.5
Exploit prediction
EPSS 4%

Description

In BIND 9.15.6 -> 9.16.5, 9.17.0 -> 9.17.3, An attacker who can establish a TCP connection with the server and send data on that connection can exploit this to trigger the assertion failure, causing the server to exit.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (7)

x_refsource_CONFIRMVendor Advisory
https://kb.isc.org/docs/cve-2020-8620
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/202008-19
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4468-1/

CVSS

7.5HIGHisc
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-617

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