Apache log4net: RemoteSyslogAppender silently deletes non-ASCII content
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Apache Software Foundation | Apache log4net | unaffected |
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| Apache Software Foundation | Apache log4net | unaffected |
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No data.
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| Apache | Log4net |
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| Apache | Log4net |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.823% probability within 30 days)
| Type | Values Removed | Values Added |
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| CPEs | cpe:2.3:a:apache:log4net:*:*:*:*:*:*:*:* |
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| First Time appeared |
Apache
Apache log4net |
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| Vendors & Products |
Apache
Apache log4net |
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| Metrics |
ssvc
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| References |
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| Description | Improper Encoding or Escaping of Output vulnerability in the RemoteSyslogAppender of Apache log4net. Every character outside visible ASCII and space was removed from the record instead of being escaped, so non-ASCII text and control characters such as tabs disappeared without notice. A party whose data reaches a log message could make a distinct value look identical in the record, for example a user name holding a zero-width space logged as admin. Only applications that use RemoteSyslogAppender are affected. This issue affects Apache log4net: from 1.2.12 before 3.5.0. Users are recommended to upgrade to version 3.5.0, which fixes the issue. | |
| Title | Apache log4net: RemoteSyslogAppender silently deletes non-ASCII content | |
| Weaknesses | CWE-116 | |
| References |
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| Metrics |
cvssV3_1
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