Wazuh: Multiple Heap-based NULL WRITE Buffer Underflows in parse_uname_string()
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| wazuh | wazuh | affected |
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No data.
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| Wazuh | Wazuh |
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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% (0.254% probability within 30 days)
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| CPEs | cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* |
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| First Time appeared |
Wazuh
Wazuh wazuh |
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| Vendors & Products |
Wazuh
Wazuh wazuh |
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| Metrics |
ssvc
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| Description | Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, multiple heap-based out-of-bounds WRITE vulnerabilities exist in parse_uname_string() (remoted_op.c). This function processes OS identification data from agents and contains a dangerous code pattern that appears in 4 locations within the same function: writing to strlen(ptr) - 1 without checking for empty strings. When the string is empty, strlen() returns 0, and 0 - 1 wraps to SIZE_MAX due to unsigned integer underflow. Due to pointer arithmetic wrapping, SIZE_MAX effectively becomes -1, causing a write exactly 1 byte before the allocated buffer. This corrupts heap metadata (e.g., the chunk size field in glibc malloc), leading to heap corruption. This issue has been patched in version 4.14.4. | |
| Title | Wazuh: Multiple Heap-based NULL WRITE Buffer Underflows in parse_uname_string() | |
| Weaknesses | CWE-124 CWE-191 |
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| References |
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| Metrics |
cvssV3_1
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