CVE-2021-28040

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Summary:

An issue was discovered in OSSEC 3.6.0. An uncontrolled recursion vulnerability in os_xml.c occurs when a large number of opening and closing XML tags is used. Because recursion is used in _ReadElem without restriction, an attacker can trigger a segmentation fault once unmapped memory is reached.

Reference Links(if available):

  • https://github.com/ossec/ossec-hids/issues/1953
  • CVSS Score (if available)

    v2: / MEDIUM

    v3: /

    Links to Exploits(if available)