rhsa-2022_0203
Vulnerability from csaf_redhat
Published
2022-01-20 09:26
Modified
2024-12-18 00:01
Summary
Red Hat Security Advisory: Red Hat Fuse 7.8-7.10 security update

Notes

Topic
A micro version update for Fuse 7.8, 7.9, and 7.10 is now available for Red Hat Fuse on Karaf and Red Hat Fuse on Spring Boot. The purpose of this text-only errata is to inform you about the security issues fixed in this release. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The releases of Red Hat Fuse 7.8.2, 7.9.1 and 7.10.1 serve as a patch to Red Hat Fuse on Karaf and Red Hat Fuse on Spring Boot and includes security fixes, which are documented in the Release Notes document linked to in the References. Security Fix(es): * log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value (CVE-2021-44228) * log4j-core: remote code execution via JDBC Appender (CVE-2021-44832) * log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228) (CVE-2021-45046) * log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern (CVE-2021-45105) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "A micro version update for Fuse 7.8, 7.9, and 7.10 is now available for Red Hat Fuse on Karaf and Red Hat Fuse on Spring Boot. The purpose of this text-only errata is to inform you about the security issues fixed in this release.\n\nRed Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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        "text": "The releases of Red Hat Fuse 7.8.2, 7.9.1 and 7.10.1 serve as a patch to Red Hat Fuse on Karaf and Red Hat Fuse on Spring Boot and includes security fixes, which are documented in the Release Notes document linked to in the References.\n\nSecurity Fix(es):\n\n* log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value (CVE-2021-44228)\n\n* log4j-core: remote code execution via JDBC Appender (CVE-2021-44832)\n\n* log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228) (CVE-2021-45046)\n\n* log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern (CVE-2021-45105)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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    "title": "Red Hat Security Advisory: Red Hat Fuse 7.8-7.10 security update",
    "tracking": {
      "current_release_date": "2024-12-18T00:01:50+00:00",
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  "vulnerabilities": [
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      "cwe": {
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        "name": "Improper Input Validation"
      },
      "discovery_date": "2021-12-10T00:00:00+00:00",
      "ids": [
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          "text": "2030932"
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      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Apache Log4j logging library in versions from 2.0.0 and before 2.15.0. A remote attacker who can control log messages or log message parameters, can execute arbitrary code on the server via JNDI LDAP endpoint.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue only affects log4j versions between 2.0  and 2.14.1. In order to exploit this flaw you need:\n- A remotely accessible endpoint with any protocol (HTTP, TCP, etc) that allows an attacker to send arbitrary data,\n- A log statement in the endpoint that logs the attacker controlled data.\n\nIn Red Hat OpenShift Logging the vulnerable log4j library is shipped in the Elasticsearch components. Because Elasticsearch is not susceptible to remote code execution with this vulnerability due to use of the Java Security Manager and because access to these components is limited, the impact by this vulnerability is reduced to Moderate.\n\nAs per upstream applications using Log4j 1.x may be impacted by this flaw if their configuration uses JNDI. However, the risk is much lower. This flaw in Log4j 1.x is tracked via https://access.redhat.com/security/cve/CVE-2021-4104 and has been rated as having Moderate security impact.\n\nCodeReady Studio version 12.21.1 was released containing a fix for this vulnerability.\n\nThe following products are NOT affected by this flaw and have been explicitly listed here for the benefit of our customers.\n- Red Hat Enterprise Linux\n- Red Hat Advanced Cluster Management for Kubernetes \n- Red Hat Advanced Cluster Security for Kubernetes\n- Red Hat Ansible Automation Platform (Engine and Tower)\n- Red Hat Certificate System\n- Red Hat Directory Server\n- Red Hat Identity Management\n- Red Hat CloudForms \n- Red Hat Update Infrastructure\n- Red Hat Satellite\n- Red Hat Ceph Storage\n- Red Hat Gluster Storage\n- Red Hat OpenShift Data Foundation\n- Red Hat OpenStack Platform\n- Red Hat Virtualization\n- Red Hat Single Sign-On\n- Red Hat 3scale API Management",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-44228"
        },
        {
          "category": "external",
          "summary": "RHBZ#2030932",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2030932"
        },
        {
          "category": "external",
          "summary": "RHSB-2021-009",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2021-009"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-44228",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-44228"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-44228",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44228"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-jfh8-c2jp-5v3q",
          "url": "https://github.com/advisories/GHSA-jfh8-c2jp-5v3q"
        },
        {
          "category": "external",
          "summary": "https://logging.apache.org/log4j/2.x/security.html",
          "url": "https://logging.apache.org/log4j/2.x/security.html"
        },
        {
          "category": "external",
          "summary": "https://www.lunasec.io/docs/blog/log4j-zero-day/",
          "url": "https://www.lunasec.io/docs/blog/log4j-zero-day/"
        },
        {
          "category": "external",
          "summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
          "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        }
      ],
      "release_date": "2021-12-10T02:01:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-01-20T09:26:34+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are available from the Fuse product documentation pages:\n\nFuse 7.8:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.9:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.10:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/deploying_into_spring_boot/patch-red-hat-fuse-applications",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:0203"
        },
        {
          "category": "workaround",
          "details": "For Log4j versions \u003e=2.10\nset the system property log4j2.formatMsgNoLookups or the environment variable LOG4J_FORMAT_MSG_NO_LOOKUPS to true\n\nFor Log4j versions \u003e=2.7 and \u003c=2.14.1\nall PatternLayout patterns can be modified to specify the message converter as %m{nolookups} instead of just %m\n\nFor Log4j versions \u003e=2.0-beta9 and \u003c=2.10.0\nremove the JndiLookup class from the classpath. For example: \n```\nzip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class\n```\n\nOn OpenShift 4 and in OpenShift Logging, the above mitigation can be applied by following the steps in this article: https://access.redhat.com/solutions/6578421\n\nOn OpenShift 3.11, mitigation to the affected Elasticsearch component can be applied by following the steps in this article: https://access.redhat.com/solutions/6578441",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "threats": [
        {
          "category": "exploit_status",
          "date": "2021-12-10T00:00:00+00:00",
          "details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        },
        {
          "category": "impact",
          "details": "Critical"
        }
      ],
      "title": "log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value"
    },
    {
      "cve": "CVE-2021-44832",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "discovery_date": "2021-12-28T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2035951"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack where an attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "log4j-core: remote code execution via JDBC Appender",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Log4j 1.x is not impacted by this vulnerability. Therefore versions of log4j shipped with Red Hat Enterprise Linux are NOT affected by this flaw.\n\nFor Elasticsearch, as shipped in OpenShift Container Platform and OpenShift Logging, access to the log4j2.properties configuration is limited only to the cluster administrators and exploitation requires cluster logging changes, what reduced the impact of this vulnerability significantly [0].\n\n[0] https://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476#update-jan-6-5",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-44832"
        },
        {
          "category": "external",
          "summary": "RHBZ#2035951",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2035951"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-44832",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-44832"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-44832",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44832"
        },
        {
          "category": "external",
          "summary": "https://issues.apache.org/jira/browse/LOG4J2-3293",
          "url": "https://issues.apache.org/jira/browse/LOG4J2-3293"
        }
      ],
      "release_date": "2021-12-28T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-01-20T09:26:34+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are available from the Fuse product documentation pages:\n\nFuse 7.8:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.9:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.10:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/deploying_into_spring_boot/patch-red-hat-fuse-applications",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:0203"
        },
        {
          "category": "workaround",
          "details": "As per upstream:\n- In prior releases confirm that if the JDBC Appender is being used it is not configured to use any protocol other than Java.\n- Note that only the log4j-core JAR file is impacted by this vulnerability. Applications using only the log4j-api JAR file without the log4j-core JAR file are not impacted by this vulnerability.",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "log4j-core: remote code execution via JDBC Appender"
    },
    {
      "cve": "CVE-2021-45046",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2021-12-14T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2032580"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "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.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Although we have matched Apache\u0027s CVSS score, with the exception of the scope metric which will remain unaltered at \"unchanged\"; as we believe code execution would be at the permission levels of the running JVM and not exceeding that of the original CVE-2021-44228 flaw.\n \nWe have given this vulnerability an impact rating of Moderate, this is because of the unlikely nature of log4j lookup mapping values being derived from attacker controlled values. This is not the default configuration for end-applications using log4j 2.x and would require explicit action from a privileged user (a developer or administrator) to access the vulnerability. \nIn certain non-default configurations, it was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was insufficient.\n\nThis issue affects the log4j version between 2.0 and 2.15. Log4j 1.x is NOT impacted by this vulnerability. \n\nPrerequisites to exploit this flaw are :\n\n- A remotely accessible endpoint with any protocol (HTTP, TCP, etc) that allows an attacker to send arbitrary data,\n- A log statement in the endpoint that logs the attacker controlled data.\n- Log4j configuration file should be explicitly configured to use a non-default Pattern Layout with a Context Lookup eg. ($${ctx:loginId}) \n\nIn most cases, the mitigation suggested for CVE-2021-44228 (i.e. to set the system property `log4j2.noFormatMsgLookup` to `true) does NOT mitigate this specific vulnerability. \nLog4j 2.16.0 fixes this issue by removing support for message lookup patterns and disabling JNDI functionality by default.\n\nFor Elasticsearch, as shipped in OpenShift 3.11, the \"log4j2.formatMsgNoLookups=true\" system property mitigation is sufficient as there are no included non-standard configurations that allow for exploitation:\n\nhttps://github.com/openshift/openshift-ansible/blob/release-3.11/roles/openshift_logging_elasticsearch/templates/log4j2.properties.j2\n\nhttps://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476\n\nFor CodeReady Studio the fix for this flaw is available on CodeReady Studio 12.21.3 and above versions.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-45046"
        },
        {
          "category": "external",
          "summary": "RHBZ#2032580",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2032580"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-45046",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-45046"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/cve/CVE-2021-44228",
          "url": "https://access.redhat.com/security/cve/CVE-2021-44228"
        },
        {
          "category": "external",
          "summary": "https://logging.apache.org/log4j/2.x/security.html",
          "url": "https://logging.apache.org/log4j/2.x/security.html"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2021/12/14/4",
          "url": "https://www.openwall.com/lists/oss-security/2021/12/14/4"
        },
        {
          "category": "external",
          "summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
          "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        }
      ],
      "release_date": "2021-12-14T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-01-20T09:26:34+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are available from the Fuse product documentation pages:\n\nFuse 7.8:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.9:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.10:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/deploying_into_spring_boot/patch-red-hat-fuse-applications",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:0203"
        },
        {
          "category": "workaround",
          "details": "For Log4j versions up to and including 2.15.0, this issue can be mitigated by removing the JndiLookup class from the classpath (example: zip -q -d log4j-core-*.jar org/apache/logging/log4j/core/lookup/JndiLookup.class).",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "threats": [
        {
          "category": "exploit_status",
          "date": "2023-05-01T00:00:00+00:00",
          "details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        },
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "log4j-core: DoS in log4j 2.x with thread context message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)"
    },
    {
      "cve": "CVE-2021-45105",
      "cwe": {
        "id": "CWE-674",
        "name": "Uncontrolled Recursion"
      },
      "discovery_date": "2021-12-19T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2034067"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "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 Service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Product Security has performed an analysis of this flaw and has classified the Attack Complexity(AC) as High because there are multiple factors involved which are beyond attacker\u0027s control:\n\n- The application has to use the logging configuration using a Context Map Lookup (for example, $${ctx:loginId}) which is a non-default Pattern Layout.\n- The application developer has to use the map org.apache.logging.log4j.ThreadContext in the application code and save at-least one key (for example, ThreadContext.put(\"loginId\", \"myId\");) in the ThreadContext map object.\n- Attackers must also know this saved key name in order to exploit this flaw.\n\nNote that saving keys in this map is a non-essential usage of log4j and just an optional feature provided. Refer to https://logging.apache.org/log4j/2.x/manual/lookups.html#ContextMapLookup to know more about the Context Map Lookup feature of Log4j.\n\nLog4j 1.x is not impacted by this vulnerability. Note that only the log4j-core JAR file is impacted by this vulnerability. Applications using ONLY the log4j-api JAR file without the log4j-core JAR file are NOT impacted by this vulnerability.\n\n\nDespite including a vulnerable version of Log4j 2.x, this vulnerability is not exploitable in Elasticsearch[0], as shipped in OpenShift Container Platform and OpenShift Logging. OpenShift 3.11 specifically does not contain any context lookups:\n\nhttps://github.com/openshift/openshift-ansible/blob/release-3.11/roles/openshift_logging_elasticsearch/templates/log4j2.properties.j2\n\nThis vulnerability is therefore rated Low for Elasticsearch in OpenShift Container Platform and OpenShift Logging.\n\n[0] https://discuss.elastic.co/t/apache-log4j2-remote-code-execution-rce-vulnerability-cve-2021-44228-esa-2021-31/291476#update-december-18-4",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-45105"
        },
        {
          "category": "external",
          "summary": "RHBZ#2034067",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2034067"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-45105",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-45105"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-45105",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45105"
        },
        {
          "category": "external",
          "summary": "https://issues.apache.org/jira/browse/LOG4J2-3230",
          "url": "https://issues.apache.org/jira/browse/LOG4J2-3230"
        },
        {
          "category": "external",
          "summary": "https://logging.apache.org/log4j/2.x/security.html",
          "url": "https://logging.apache.org/log4j/2.x/security.html"
        },
        {
          "category": "external",
          "summary": "https://www.openwall.com/lists/oss-security/2021/12/19/1",
          "url": "https://www.openwall.com/lists/oss-security/2021/12/19/1"
        }
      ],
      "release_date": "2021-12-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-01-20T09:26:34+00:00",
          "details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nInstallation instructions are available from the Fuse product documentation pages:\n\nFuse 7.8:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.8/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.9:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/html/deploying_into_spring_boot/patch-red-hat-fuse-applications\n\nFuse 7.10:\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/installing_on_apache_karaf/apply-hotfix-patch\nhttps://access.redhat.com/documentation/en-us/red_hat_fuse/7.10/html/deploying_into_spring_boot/patch-red-hat-fuse-applications",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:0203"
        },
        {
          "category": "workaround",
          "details": "For Log4j 2 versions up to and including 2.16.0, this flaw can be mitigated by:\n- In PatternLayout in the Log4j logging configuration, replace Context Lookups like ${ctx:loginId} or $${ctx:loginId} with Thread Context Map patterns (%X, %mdc, or %MDC) like %X{loginId}.\n- Otherwise, in the Log4j logging configuration, remove references to Context Lookups like ${ctx:loginId} or $${ctx:loginId} where they originate from sources external to the application such as HTTP headers or user input.",
          "product_ids": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Fuse 7.8.2, 7.9.1, 7.10.1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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