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CVE-2020-8622

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CVE-2020-8622

Published: Aug 21, 2020

Modified: Sep 16, 2024

PUBLISHED

CVSS v3.1

6.5

MEDIUM

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.

VendorProductVersions

ISC

BIND9

affected
9.0.0 - < unspecified
affected
unspecified - < 9.11.22
affected
9.12.0 - < unspecified
affected
unspecified - < 9.16.6
affected
9.17.0 - < unspecified

+2 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

FEDORA-2020-a02b7a0f21
vendor-advisory
x_refsource_FEDORA
USN-4468-1
vendor-advisory
x_refsource_UBUNTU
USN-4468-2
vendor-advisory
x_refsource_UBUNTU
DSA-4752
vendor-advisory
x_refsource_DEBIAN
FEDORA-2020-14c194e5af
vendor-advisory
x_refsource_FEDORA
GLSA-202008-19
vendor-advisory
x_refsource_GENTOO
openSUSE-SU-2020:1699
vendor-advisory
x_refsource_SUSE
openSUSE-SU-2020:1701
vendor-advisory
x_refsource_SUSE

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