Log4j_CVE-2021-45046

Log4j 2.15.0 特権昇格 -- CVE-2021-45046 攻撃 説明 Apache Log4j 2.15.0 における CVE-2021-44228 の修正が、特定の非デフォルト構成では不完全であることが判明しました。これにより、Thread Context Map MDC 入力データを制御できる攻撃者が、ログ設定でデフォルト以外の Pattern Layout に Context Lookup 例: $$ctx:loginId または Thread Context Map パターン %X, %mdc, %MDC を使用している場合に、JNDI Lookup...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: wildfly-security-manager (UTSA-2026-030642)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-030642 advisory. It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non- default configurations. This could allows attackers with...

Unity Linux 20.1050e / 20.1060e / 20.1070-8ae / 20.1070e Security Update: thrift (UTSA-2026-032285)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-032285 advisory. Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 and 2.3.1 did not protect from uncontrolled recursion from self-referential lookups. This allows an...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: wildfly-core (UTSA-2026-016706)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016706 advisory. Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 and 2.3.1 did not protect from uncontrolled recursion from self-referential lookups. This allows an...

GLSA-202310-16 : Ubiquiti UniFi: remote code execution via bundled log4j

The remote host is affected by the vulnerability described in GLSA-202310-16 Ubiquiti UniFi: remote code execution via bundled log4j - JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration. The attacker can provid...

SUSE CVE-2021-45105

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 and 2.3.1 did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue wa...

OESA-2022-1957 log4j security update

Log4j is a tool to help the programmer output log statements to a variety of output targets. Security Fixes: It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Contex...

log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern

A flaw was found in the Apache Log4j logging library 2.x. when the logging configuration uses a non-default Pattern Layout with a Context Lookup. Attackers with control over Thread Context Map MDC input data can craft malicious input data that contains a recursive lookup and can cause Denial of...

log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)

A flaw was found in the Apache Log4j logging library in versions from 2.0.0 and before 2.16.0. A remote attacker with control over Thread Context Map MDC input data could craft malicious input using a JNDI Lookup pattern resulting in remote code execution RCE in a limited number of environments...

log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern

A flaw was found in the Apache Log4j logging library 2.x. when the logging configuration uses a non-default Pattern Layout with a Context Lookup. Attackers with control over Thread Context Map MDC input data can craft malicious input data that contains a recursive lookup and can cause Denial of...

log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern

A flaw was found in the Apache Log4j logging library 2.x. when the logging configuration uses a non-default Pattern Layout with a Context Lookup. Attackers with control over Thread Context Map MDC input data can craft malicious input data that contains a recursive lookup and can cause Denial of...

log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)

A flaw was found in the Apache Log4j logging library in versions from 2.0.0 and before 2.16.0. A remote attacker with control over Thread Context Map MDC input data could craft malicious input using a JNDI Lookup pattern resulting in remote code execution RCE in a limited number of environments...

Low: Red Hat Security Advisory: Red Hat OpenShift Enterprise Logging security and bug fix update (5.0.11)

An update is now available for OpenShift Logging 5.0.11 Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the...

Debian DLA-2852-1 : apache-log4j2 - LTS security update

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2852 advisory. Several security vulnerabilities were found in Apache Log4j2, a Logging Framework for Java, which could lead to a denial of service or information disclosure...

FreeBSD : OpenSearch -- Log4Shell (b0f49cb9-6736-11ec-9eea-589cfc007716)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b0f49cb9-6736-11ec-9eea-589cfc007716 advisory. - It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain...

OESA-2021-1474 log4j security update

Log4j is a tool to help the programmer output log statements to a variety of output targets. Security Fixes: Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Threa...

Security Bulletin: Multiple vulnerabilities in Apache log4j affect the IBM WebSphere Application Server which is shipped with IBM Intelligent Operations Center (CVE-2021-4104, CVE-2021-45046).

Summary IBM WebSphere® Application Server is shipped with IBM® Intelligent Operations Center. Information about a security vulnerability affecting IBM WebSphere Application Server has been published in a security bulletin. Vulnerability Details CVEID: CVE-2021-4104 DESCRIPTION: Apache Log4j could...

VulnCheck KEV: CVE-2021-45105

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 excluding 2.12.3 and 2.3.1 did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue wa...

Updated log4j packages fix security vulnerability

Updated log4j packages fix security vulnerability: Apache Log4j2 versions 2.0-alpha1 through 2.16.0 did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is...

Updated log4j packages fix security vulnerability

It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map MDC input data when the logging configuration uses a non-default Pattern Layout with either a Context...