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Ubuntu.comUB:CVE-2021-27018

HistoryAug 30, 2021 - 12:00 a.m.

CVE-2021-27018

2021-08-3000:00:00

ubuntu.com

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

36.0%

JSON

The mechanism which performs certificate validation was discovered to have
a flaw that resulted in certificates signed by an internal certificate
authority to not be properly validated. This issue only affects clients
that are configured to utilize Tenable.sc as the vulnerability data source.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpuppet< anyUNKNOWN
ubuntu20.04noarchpuppet< anyUNKNOWN
ubuntu22.04noarchpuppet< anyUNKNOWN
ubuntu14.04noarchpuppet< anyUNKNOWN
ubuntu16.04noarchpuppet< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	puppet	< any	UNKNOWN
ubuntu	20.04	noarch	puppet	< any	UNKNOWN
ubuntu	22.04	noarch	puppet	< any	UNKNOWN
ubuntu	14.04	noarch	puppet	< any	UNKNOWN
ubuntu	16.04	noarch	puppet	< any	UNKNOWN

References

launchpad.net/bugs/cve/CVE-2021-27018

nvd.nist.gov/vuln/detail/CVE-2021-27018

puppet.com/security/cve/CVE-2021-27018

security-tracker.debian.org/tracker/CVE-2021-27018

www.cve.org/CVERecord?id=CVE-2021-27018

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

36.0%

JSON

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