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Juniper Junos OS: 2021-04 Security Bulletin: Junos OS: SRX Series: An assertion failure in BIND can be used to trigger a Denial of Service (DoS) (JSA11116) (CVE-2020-8622)

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Juniper Junos OS: 2021-04 Security Bulletin: Junos OS: SRX Series: An assertion failure in BIND can be used to trigger a Denial of Service (DoS) (JSA11116) (CVE-2020-8622)

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
08/21/2020
Created
04/16/2021
Added
04/16/2021
Modified
03/21/2022

Description

In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.

Solution(s)

  • juniper-junos-os-upgrade-latest

References

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