Critical
Security advisory
The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an out-of-bounds stack read.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-10195
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:10 UTC · Revision 1
Source evidence
The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an out-of-bounds stack read.
osv:CVE-2016-10195
Complete source record
{
"id": "24f1d0850a9db6f54a480079d36ddaf3fef69d4916d7210287181bfa17f436f6",
"url": "https://osv.dev/vulnerability/CVE-2016-10195",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-10195",
"summary": "The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an out-of-bounds stack read.",
"evidence": "osv:CVE-2016-10195",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2016-10195",
"aliases": [
"CVE-2016-10195"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/libevent/libevent",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "a73fb2f443ebf9687ee6ca81a6401d1f3751683f"
},
{
"fixed": "96f64a022014a208105ead6c8a7066018449d86d"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.1.6-beta"
}
],
"source": "DESCRIPTION"
},
{
"range": [
{
"fixed": "96f64a022014a208105ead6c8a7066018449d86d"
}
],
"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-2016-10195.json",
"vanir_signatures": [
{
"id": "CVE-2016-10195-3b821893",
"digest": {
"length": 877,
"function_hash": "230810917948425696078014435790478542403"
},
"source": "https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d",
"target": {
"file": "evdns.c",
"function": "name_parse"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2016-10195-87e11fd7",
"digest": {
"threshold": 0.9,
"line_hashes": [
"106612348666783545995288764119330317910",
"99528596204269176743159437588130556516",
"276937442475470391917172913239826145816",
"317810233472634170587977236046065416806",
"290818586757130838086385828498896856792",
"91027287075917707334482351230775769010",
"181903107053888778292821972103149648024",
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]
},
"source": "https://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d",
"target": {
"file": "evdns.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:14:34Z"
}
}
],
"modified": "2026-10-20T13:14:34.347597079Z",
"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://github.com/libevent/libevent/commit/96f64a022014a208105ead6c8a7066018449d86d",
"https://github.com/libevent/libevent/issues/317"
],
"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:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2016-10195",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387374,
"published_at": "2017-03-15T15:59:00.39+00:00"
}