CVE-2021-20322

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 26-08-2021 10:00

Last modified: - 26-08-2021 10:00

Total changes: - 3

Description

CVE-2021-20322 kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies

Common Vulnerability Scoring System (CVSS)

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

High

Attack complexity

Network

Attack vector

None

Availability

High

Confidentiality

High

Integrity

None

Privileges required

Unchanged

Scope

None

User interaction

7.4

Base score

Exploitability score

Impact score

Verification logic

AND

product=kernel-rt-0 AND versionEndExcluding=4.18.0-372.9.1.rt7.166.el8

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=8

AND

product=kernel-0 AND versionEndExcluding=4.18.0-372.9.1.el8

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=8

AND

product=kernel-rt-0 AND versionEndExcluding=4.18.0-305.49.1.rt7.121.el8_4

vendor=Red Hat Enterprise Linux AND product=rhel_eus AND version=8.4

AND

product=kernel-0 AND versionEndExcluding=4.18.0-305.49.1.el8_4

vendor=Red Hat Enterprise Linux AND product=rhel_eus AND version=8.4

AND

product=kernel AND version=

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=5

AND

product=kernel AND version=

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=6

AND

product=kernel AND version=

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=7

AND

product=kernel-rt AND version=

vendor=Red Hat Enterprise Linux AND product=enterprise_linux AND version=7

Reference

Keywords

CVE-2021-20322

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

REDHAT

CVE-2021-20322

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures