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    6 vulnerabilities found for Apache Log4j by Apache Software Foundation

    CVE-2023-26464 (GCVE-0-2023-26464)

    Vulnerability from cvelistv5 – Published: 2023-03-10 13:38 – Updated: 2025-02-13 16:44
    VLAI
    Title
    Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender
    Summary
    ** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: 1.0.4 , < 2 (maven)
    Unaffected: 2 , ≤ * (maven)
    Create a notification for this product.
    apache log4j Affected: 1.0.4 , < 2.0 (custom)
        cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Credits
    Garrett Tucker of Red Hat
    Show details on NVD website

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    CVE-2021-45046 (GCVE-0-2021-45046)

    Vulnerability from cvelistv5 – Published: 2021-12-14 16:55 – Updated: 2025-10-21 23:25
    Title
    Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack
    Summary
    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 Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-917 - Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
    Assigner
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    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: Apache Log4j2 , < 2.16.0 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2017-5645 (GCVE-0-2017-5645)

    Vulnerability from cvelistv5 – Published: 2017-04-17 21:00 – Updated: 2024-08-05 15:11
    VLAI
    Summary
    In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
    Severity
    No CVSS data available.
    CWE
    • Remote Code Execution.
    Assigner
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2017:2888 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2809 vendor-advisoryx_refsource_REDHAT
    http://www.securityfocus.com/bid/97702 vdb-entryx_refsource_BID
    http://www.securitytracker.com/id/1041294 vdb-entryx_refsource_SECTRACK
    https://access.redhat.com/errata/RHSA-2017:2810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:1801 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2889 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2635 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2638 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:1417 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2423 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2808 vendor-advisoryx_refsource_REDHAT
    http://www.securitytracker.com/id/1040200 vdb-entryx_refsource_SECTRACK
    https://access.redhat.com/errata/RHSA-2017:2636 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:3399 vendor-advisoryx_refsource_REDHAT
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    https://access.redhat.com/errata/RHSA-2017:1802 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2019:1545 vendor-advisoryx_refsource_REDHAT
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    http://www.oracle.com/technetwork/security-adviso… x_refsource_CONFIRM
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    https://www.oracle.com/security-alerts/cpujul2020.html x_refsource_MISC
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    https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISC
    https://lists.apache.org/thread.html/rbfa7a0742be… mailing-listx_refsource_MLIST
    https://lists.apache.org/thread.html/r23369fd603e… mailing-listx_refsource_MLIST
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    https://lists.apache.org/thread.html/r94b5aae09c4… mailing-listx_refsource_MLIST
    https://lists.apache.org/thread.html/rdbd579dc223… mailing-listx_refsource_MLIST
    https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
    https://www.oracle.com/security-alerts/cpujan2022.html x_refsource_MISC
    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: All versions between 2.0-alpha1 and 2.8.1
    Create a notification for this product.
    Date Public
    2017-04-02 00:00
    Show details on NVD website

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    CVE-2023-26464 (GCVE-0-2023-26464)

    Vulnerability from nvd – Published: 2023-03-10 13:38 – Updated: 2025-02-13 16:44
    VLAI
    Title
    Apache Log4j 1.x (EOL) allows DoS in Chainsaw and SocketAppender
    Summary
    ** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an attacker that manages to cause a logging entry involving a specially-crafted (ie, deeply nested) hashmap or hashtable (depending on which logging component is in use) to be processed could exhaust the available memory in the virtual machine and achieve Denial of Service when the object is deserialized. This issue affects Apache Log4j before 2. Affected users are recommended to update to Log4j 2.x. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: 1.0.4 , < 2 (maven)
    Unaffected: 2 , ≤ * (maven)
    Create a notification for this product.
    apache log4j Affected: 1.0.4 , < 2.0 (custom)
        cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*
    Create a notification for this product.
    Credits
    Garrett Tucker of Red Hat
    Show details on NVD website

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    CVE-2021-45046 (GCVE-0-2021-45046)

    Vulnerability from nvd – Published: 2021-12-14 16:55 – Updated: 2025-10-21 23:25
    Title
    Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack
    Summary
    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 Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-917 - Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
    Assigner
    References
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    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: Apache Log4j2 , < 2.16.0 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2017-5645 (GCVE-0-2017-5645)

    Vulnerability from nvd – Published: 2017-04-17 21:00 – Updated: 2024-08-05 15:11
    VLAI
    Summary
    In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
    Severity
    No CVSS data available.
    CWE
    • Remote Code Execution.
    Assigner
    References
    URL Tags
    https://access.redhat.com/errata/RHSA-2017:2888 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2809 vendor-advisoryx_refsource_REDHAT
    http://www.securityfocus.com/bid/97702 vdb-entryx_refsource_BID
    http://www.securitytracker.com/id/1041294 vdb-entryx_refsource_SECTRACK
    https://access.redhat.com/errata/RHSA-2017:2810 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:1801 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2889 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2635 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2638 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:1417 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2423 vendor-advisoryx_refsource_REDHAT
    https://access.redhat.com/errata/RHSA-2017:2808 vendor-advisoryx_refsource_REDHAT
    http://www.securitytracker.com/id/1040200 vdb-entryx_refsource_SECTRACK
    https://access.redhat.com/errata/RHSA-2017:2636 vendor-advisoryx_refsource_REDHAT
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    Impacted products
    Vendor Product Version
    Apache Software Foundation Apache Log4j Affected: All versions between 2.0-alpha1 and 2.8.1
    Create a notification for this product.
    Date Public
    2017-04-02 00:00
    Show details on NVD website

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                {
                  "name": "RHSA-2017:2633",
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                {
                  "name": "[logging-dev] 20191218 [CVE-2019-17571] Apache Log4j 1.2 deserialization of untrusted data in SocketServer",
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                  "name": "[oss-security] 20191218 [CVE-2019-17571] Apache Log4j 1.2 deserialization of untrusted data in SocketServer",
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                  "name": "[tika-dev] 20200106 [jira] [Commented] (TIKA-3019) [9.8] [CVE-2019-17571] [tika-app] [1.23]",
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                  "url": "https://lists.apache.org/thread.html/rf2567488cfc9212b42e34c6393cfa1c14e30e4838b98dda84d71041f@%3Cdev.tika.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/r4b25538be50126194cc646836c718b1a4d8f71bd9c912af5b59134ad@%3Cdev.tika.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/r61590890edcc64140e0c606954b29a063c3d08a2b41d447256d51a78@%3Cissues.activemq.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/r2ce8d26154bea939536e6cf27ed02d3192bf5c5d04df885a80fe89b3@%3Cissues.activemq.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/re8c21ed9dd218c217d242ffa90778428e446b082b5e1c29f567e8374@%3Cissues.activemq.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/r18f1c010b554a3a2d761e8ffffd8674fd4747bcbcf16c643d708318c@%3Cissues.activemq.apache.org%3E"
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                  "refsource": "MISC",
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                  "refsource": "CONFIRM",
                  "url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
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                  "url": "https://lists.apache.org/thread.html/r3784834e80df2f284577a5596340fb84346c91a2dea6a073e65e3397@%3Cissues.activemq.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/rcbb79023a7c8494cb389cd3d95420fa9e0d531ece0b780b8c1f99422@%3Ccommits.doris.apache.org%3E"
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                  "url": "https://lists.apache.org/thread.html/r0831e2e52a390758ce39a6193f82c11c295175adce6e6307de28c287@%3Cissues.beam.apache.org%3E"
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        "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "assignerShortName": "apache",
        "cveId": "CVE-2017-5645",
        "datePublished": "2017-04-17T21:00:00.000Z",
        "dateReserved": "2017-01-29T00:00:00.000Z",
        "dateUpdated": "2024-08-05T15:11:47.391Z",
        "state": "PUBLISHED"
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      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }