CVE-2020-8620

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.

Remediation

Solution:

  • Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.6 BIND 9.17.4

Workaround:

  • No workarounds known.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 2.27% Top 20%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory isc.org
Affected: ISC BIND9
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2020-8620?
CVE-2020-8620 has been scored as a high severity vulnerability.
How to fix CVE-2020-8620?
To fix CVE-2020-8620: Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.6 BIND 9.17.4
Is CVE-2020-8620 being actively exploited in the wild?
It is possible that CVE-2020-8620 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8620?
CVE-2020-8620 affects ISC BIND9.
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