CVE-2021-28040

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Source
https://cve.org/CVERecord?id=CVE-2021-28040
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28040.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-28040
Published
2021-03-05T18:15:13.270Z
Modified
2026-07-08T05:56:59.888057793Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/ossec/ossec-hids

Affected ranges

Type
GIT
Repo
https://github.com/ossec/ossec-hids
Events
Introduced
9772223c25a3eda512d35026737d7058297039a4
Last affected
9772223c25a3eda512d35026737d7058297039a4
Database specific 
{
    "cpe": "cpe:2.3:a:ossec:ossec:3.6.0:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "3.6.0"
        },
        {
            "last_affected": "3.6.0"
        }
    ],
    "source": "CPE_STRING"
}

Affected versions

3.*
3.6.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-28040.json"