CVE-2020-19860

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-19860
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-19860.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-19860
Downstream
Related
Published
2022-01-21T14:15:07Z
Modified
2025-10-21T05:45:20.638428Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

When ldns version 1.7.1 verifies a zone file, the ldnsrrnewfrmstr_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

References

Affected packages

Git / github.com/nlnetlabs/ldns

Affected ranges

Type
GIT
Repo
https://github.com/nlnetlabs/ldns
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
15d96206996bea969fbc918eb0a4a346f514b9f3

Affected versions

release-1.*

release-1.6.11
release-1.6.17
release-1.6.17rc1
release-1.6.17rc2
release-1.7.0
release-1.7.0-rc1
release-1.7.1
release-1.7.1-rc1

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "digest": {
            "length": 8891.0,
            "function_hash": "251941352422954362548173721366397297493"
        },
        "signature_type": "Function",
        "id": "CVE-2020-19860-191561e2",
        "target": {
            "file": "rr.c",
            "function": "ldns_rr_new_frm_str_internal"
        },
        "source": "https://github.com/nlnetlabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3",
        "deprecated": false
    },
    {
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "304150356136728191013666289071051846294",
                "155677165420181730933934979959893485858",
                "77135638458978608597762295275407082624",
                "260965272174818498082687692350980513016",
                "130518172275200410960406267494341286040",
                "51273490682426193892898198661893070480",
                "21702059573567139622621572651513730590",
                "210984438082497427222760441458755393575",
                "12078708481039353439108142430185836923",
                "275043312956904328881478936168966183832",
                "72408890483878620117238557110253677009"
            ]
        },
        "signature_type": "Line",
        "id": "CVE-2020-19860-75361339",
        "target": {
            "file": "rr.c"
        },
        "source": "https://github.com/nlnetlabs/ldns/commit/15d96206996bea969fbc918eb0a4a346f514b9f3",
        "deprecated": false
    }
]