High
Security advisory
In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-10097
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:54 UTC · Revision 1
Source evidence
In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.
osv:CVE-2019-10097
Complete source record
{
"id": "6ce70a7655e22c6500921bd08ee014ff7386cfd90996e47a598264619e6f8729",
"url": "https://osv.dev/vulnerability/CVE-2019-10097",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-10097",
"summary": "In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the \"PROXY\" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.",
"evidence": "osv:CVE-2019-10097",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2019-10097",
"aliases": [
"CVE-2019-10097"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/httpd",
"type": "GIT",
"events": [
{
"introduced": "4a283f70d99e6535b0be857261d297946a7c58bc"
},
{
"last_affected": "3090a40b568b675c6b09a4f008b421a747e2731c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:apache:http_server:2.4.33:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.33"
},
{
"last_affected": "2.4.33"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:http_server:2.4.34:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.34"
},
{
"last_affected": "2.4.34"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:http_server:2.4.35:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.35"
},
{
"last_affected": "2.4.35"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:http_server:2.4.37:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.37"
},
{
"last_affected": "2.4.37"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:apache:http_server:2.4.38:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.4.38"
},
{
"last_affected": "2.4.38"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"2.4.33",
"2.4.34",
"2.4.35",
"2.4.37",
"2.4.38"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-10097.json"
}
}
],
"modified": "2026-10-24T10:31:00.203503157Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E",
"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E",
"https://access.redhat.com/errata/RHSA-2019:4126",
"https://httpd.apache.org/security/vulnerabilities_24.html",
"https://www.oracle.com/security-alerts/cpuapr2020.html",
"https://www.oracle.com/security-alerts/cpujul2020.html",
"https://www.oracle.com/security-alerts/cpuoct2020.html",
"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:oracle:instantis_enterprisetrack:*:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:instantis_enterprisetrack",
"extracted_events": [
{
"range": [
{
"introduced": "17.1"
},
{
"last_affected": "17.3"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_element_manager:8.0.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_element_manager:8.1.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_element_manager",
"extracted_events": [
{
"range": [
{
"introduced": "8.0.0"
},
{
"last_affected": "8.0.0"
},
{
"introduced": "8.1.0"
},
{
"last_affected": "8.1.0"
},
{
"introduced": "8.1.1"
},
{
"last_affected": "8.1.1"
},
{
"introduced": "8.2.0"
},
{
"last_affected": "8.2.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_session_report_manager:8.2.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_session_report_manager",
"extracted_events": [
{
"range": [
{
"introduced": "8.1.1"
},
{
"last_affected": "8.1.1"
},
{
"introduced": "8.2.0"
},
{
"last_affected": "8.2.0"
},
{
"introduced": "8.2.1"
},
{
"last_affected": "8.2.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:communications_session_route_manager:8.2.1:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:communications_session_route_manager",
"extracted_events": [
{
"range": [
{
"introduced": "8.1.1"
},
{
"last_affected": "8.1.1"
},
{
"introduced": "8.2.0"
},
{
"last_affected": "8.2.0"
},
{
"introduced": "8.2.1"
},
{
"last_affected": "8.2.1"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*",
"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:enterprise_manager_ops_center",
"extracted_events": [
{
"range": [
{
"introduced": "12.3.3"
},
{
"last_affected": "12.3.3"
},
{
"introduced": "12.4.0"
},
{
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}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*"
],
"vendor_product": "oracle:http_server",
"extracted_events": [
{
"range": [
{
"introduced": "12.2.1.4.0"
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{
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}
],
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}
]
},
{
"cpes": [
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],
"vendor_product": "oracle:retail_xstore_point_of_service",
"extracted_events": [
{
"range": [
{
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},
{
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}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-10097",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 439484,
"published_at": "2019-09-26T16:15:10.673+00:00"
}