High
Security advisory
Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-10196
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:10 UTC · Revision 1
Source evidence
Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.
osv:CVE-2016-10196
Complete source record
{
"id": "7fce48154d5866e243d2af72ffcb5ac9bd2a292e732ad90155a1385561b4fdc0",
"url": "https://osv.dev/vulnerability/CVE-2016-10196",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-10196",
"summary": "Stack-based buffer overflow in the evutil_parse_sockaddr_port function in evutil.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (segmentation fault) via vectors involving a long string in brackets in the ip_as_string argument.",
"evidence": "osv:CVE-2016-10196",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-10196",
"aliases": [
"CVE-2016-10196"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libevent/libevent",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "a73fb2f443ebf9687ee6ca81a6401d1f3751683f"
},
{
"fixed": "329acc18a0768c21ba22522f01a5c7f46cacc4d5"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.1.6-beta"
}
],
"source": "DESCRIPTION"
},
{
"range": [
{
"fixed": "329acc18a0768c21ba22522f01a5c7f46cacc4d5"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"release-2.1.5-beta",
"release-2.1.4-alpha",
"release-2.1.3-alpha",
"release-2.1.2-alpha",
"release-2.1.1-alpha",
"release-2.0.10-stable",
"release-2.0.9-rc",
"release-2.0.8-rc",
"release-2.0.7-rc",
"release-2.0.6-rc",
"release-2.0.5-beta",
"release-2.0.4-alpha",
"release-2.0.3-alpha",
"release-2.0.1-alpha",
"release-1.1b"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-10196.json",
"vanir_signatures": [
{
"id": "CVE-2016-10196-27612800",
"digest": {
"threshold": 0.9,
"line_hashes": [
"150950762839313443854128451278399393403",
"156066307512493417114155182452196228317",
"284286474332607600344405972541101859336",
"213310763593689227919181651068431535940",
"123729570573793670263357540440117772099",
"2756236998268050881793369281074788681",
"154193229467838285812135636366529729055",
"160986861496127588749569741143093255020",
"4382978669650176026683552117197548399"
]
},
"source": "https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5",
"target": {
"file": "evutil.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2016-10196-e69ca298",
"digest": {
"length": 1955,
"function_hash": "243983321357223491177841111507201921392"
},
"source": "https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5",
"target": {
"file": "evutil.c",
"function": "evutil_parse_sockaddr_port"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:14:35Z"
}
}
],
"modified": "2026-10-20T13:14:35.133001428Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2017:1104",
"https://access.redhat.com/errata/RHSA-2017:1106",
"https://access.redhat.com/errata/RHSA-2017:1201",
"https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog",
"https://security.gentoo.org/glsa/201705-01",
"https://www.mozilla.org/security/advisories/mfsa2017-10/",
"https://www.mozilla.org/security/advisories/mfsa2017-11/",
"https://www.mozilla.org/security/advisories/mfsa2017-12/",
"https://www.mozilla.org/security/advisories/mfsa2017-13/",
"https://bugzilla.mozilla.org/show_bug.cgi?id=1343453",
"https://github.com/libevent/libevent/issues/318",
"https://github.com/libevent/libevent/commit/329acc18a0768c21ba22522f01a5c7f46cacc4d5"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:*"
],
"vendor_product": "libevent_project:libevent",
"extracted_events": [
{
"range": [
{
"last_affected": "2.1.5"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*"
],
"vendor_product": "mozilla:firefox",
"extracted_events": [
{
"range": [
{
"fixed": "45.9.0"
},
{
"fixed": "53.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*"
],
"vendor_product": "mozilla:thunderbird",
"extracted_events": [
{
"range": [
{
"fixed": "52.1.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:mozilla:firefox:52.0:*:*:*:*:*:*:*"
],
"vendor_product": "mozilla:firefox",
"extracted_events": [
{
"range": [
{
"introduced": "52.0"
},
{
"last_affected": "52.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-10196",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387376,
"published_at": "2017-03-15T15:59:00.437+00:00"
}