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ubuntucveUbuntu.comUB:CVE-2021-44228
HistoryDec 10, 2021 - 12:00 a.m.

CVE-2021-44228

2021-12-1000:00:00
ubuntu.com
ubuntu.com
132

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.976 High

EPSS

Percentile

100.0%

JSON

Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2,
2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and
parameters do not protect against attacker controlled LDAP and other JNDI
related endpoints. An attacker who can control log messages or log message
parameters can execute arbitrary code loaded from LDAP servers when message
lookup substitution is enabled. From log4j 2.15.0, this behavior has been
disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and
2.3.1), this functionality has been completely removed. Note that this
vulnerability is specific to log4j-core and does not affect log4net,
log4cxx, or other Apache Logging Services projects.

Notes

Author Note
mdeslaur apache-log4j1.2 contains a similar issue in a non-default configuration, and it was assigned CVE-2021-4104, see that CVE for information about apache-log4j1.2
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchapache-log4j2< 2.10.0-2ubuntu0.1UNKNOWN
ubuntu20.04noarchapache-log4j2< 2.15.0-0.20.04.1UNKNOWN
ubuntu21.04noarchapache-log4j2< 2.15.0-0.21.04.1UNKNOWN
ubuntu21.10noarchapache-log4j2< 2.15.0-0.21.10.1UNKNOWN
ubuntu16.04noarchapache-log4j2< 2.4-2ubuntu0.1~esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN

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10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.976 High

EPSS

Percentile

100.0%

JSON
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