CVE-2016-10197

The searchmakenew function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "2.1.5"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "8.0"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/libevent/libevent

Affected ranges

Type

GIT

Repo

https://github.com/libevent/libevent

Events

Introduced

Fixed

a73fb2f443ebf9687ee6ca81a6401d1f3751683f

Fixed

ec65c42052d95d2c23d1d837136d1cf1d9ecef9e

Database specific

{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.1.6-beta"
        }
    ]
}

Affected versions

release-1.*

release-1.1b

release-2.*

release-2.0.1-alpha

release-2.0.10-stable

release-2.0.3-alpha

release-2.0.4-alpha

release-2.0.5-beta

release-2.0.6-rc

release-2.0.7-rc

release-2.0.8-rc

release-2.0.9-rc

release-2.1.1-alpha

release-2.1.2-alpha

release-2.1.3-alpha

release-2.1.4-alpha

release-2.1.5-beta

Database specific

vanir_signatures_modified

"2026-04-11T19:42:56Z"

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-10197.json"

vanir_signatures

[
    {
        "target": {
            "file": "evdns.c"
        },
        "signature_version": "v1",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "214367120580076081898697868452724967811",
                "164211120368855747282035090237193966170",
                "292021247077176379054083257543566590152",
                "112428809209276904449140038770404008020",
                "215075892714760528797634730112271143100"
            ]
        },
        "id": "CVE-2016-10197-b53ea4fd",
        "source": "https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e",
        "signature_type": "Line"
    }
]