143 lines
6.0 KiB
JSON
143 lines
6.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-41499",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-04-20T16:14:19.009Z",
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"datePublished": "2026-04-29T18:01:25.078Z",
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"dateUpdated": "2026-04-29T18:31:46.154Z"
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},
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"containers": {
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"cna": {
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"title": "Wazuh: Multiple Heap-based NULL WRITE Buffer Underflows in parse_uname_string()",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-124",
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"lang": "en",
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"description": "CWE-124: Buffer Underwrite ('Buffer Underflow')",
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"type": "CWE"
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}
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]
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},
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{
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"descriptions": [
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{
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"cweId": "CWE-191",
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"lang": "en",
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"description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 6.5,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/wazuh/wazuh/security/advisories/GHSA-qvqj-p8mm-r7h3",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-qvqj-p8mm-r7h3"
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},
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{
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"name": "https://github.com/wazuh/wazuh/releases/tag/v4.14.4",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/wazuh/wazuh/releases/tag/v4.14.4"
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}
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],
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"affected": [
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{
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"vendor": "wazuh",
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"product": "wazuh",
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"versions": [
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{
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"version": ">= 4.0.0, < 4.14.4",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-04-29T18:01:25.078Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "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."
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}
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],
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"source": {
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"advisory": "GHSA-qvqj-p8mm-r7h3",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/wazuh/wazuh/security/advisories/GHSA-qvqj-p8mm-r7h3",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-04-29T18:31:03.330693Z",
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"id": "CVE-2026-41499",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-04-29T18:31:46.154Z"
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}
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}
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]
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}
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} |