CVE-2020-25829

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-25829
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25829.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-25829
Downstream
Related
Published
2020-10-16T06:15:12Z
Modified
2025-10-21T05:48:27.200964Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).

References

Affected packages

Git / github.com/powerdns/pdns

Affected ranges

Type
GIT
Repo
https://github.com/powerdns/pdns
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
77409aab0be43071b365760213894d6388c3df30

Affected versions

auth-3.*

auth-3.1-rc1
auth-3.1-rc2
auth-3.1-rc3
auth-3.2-rc1
auth-3.2-rc2
auth-3.2-rc3
auth-3.2-rc4
auth-3.3
auth-3.3-rc1
auth-3.3-rc2
auth-3.4.0
auth-3.4.0-rc1
auth-3.4.0-rc2

auth-4.*

auth-4.0.0
auth-4.0.0-alpha1
auth-4.0.0-alpha2
auth-4.0.0-alpha3
auth-4.0.0-beta1
auth-4.0.0-rc1
auth-4.0.0-rc2
auth-4.0.1
auth-4.1.0
auth-4.1.0-rc1
auth-4.1.0-rc2
auth-4.1.0-rc3

dnsdist-1.*

dnsdist-1.0.0
dnsdist-1.0.0-alpha1
dnsdist-1.0.0-alpha2
dnsdist-1.0.0-beta1
dnsdist-1.1.0
dnsdist-1.1.0-beta1
dnsdist-1.1.0-beta2
dnsdist-1.2.0

Other

rec-3-0
rec-3-0-1

rec-3.*

rec-3.0
rec-3.0.1
rec-3.1.4
rec-3.3.1
rec-3.5
rec-3.5-rc1
rec-3.5-rc3
rec-3.5-rc4
rec-3.5-rc5
rec-3.6.0
rec-3.6.0-rc1
rec-3.7.0
rec-3.7.0-rc1
rec-3.7.0-rc2

rec-4.*

rec-4.0.0
rec-4.0.0-alpha1
rec-4.0.0-alpha2
rec-4.0.0-alpha3
rec-4.0.0-beta1
rec-4.0.0-rc1
rec-4.0.1
rec-4.0.2
rec-4.1.0
rec-4.1.0-alpha1
rec-4.1.0-rc1
rec-4.1.0-rc2
rec-4.1.0-rc3
rec-4.1.1
rec-4.1.10
rec-4.1.11
rec-4.1.12
rec-4.1.13
rec-4.1.14
rec-4.1.15
rec-4.1.16
rec-4.1.17
rec-4.1.2
rec-4.1.3
rec-4.1.4
rec-4.1.5
rec-4.1.6
rec-4.1.7
rec-4.1.8
rec-4.1.9

Database specific

vanir_signatures

[
    {
        "source": "https://github.com/powerdns/pdns/commit/77409aab0be43071b365760213894d6388c3df30",
        "id": "CVE-2020-25829-ac387b1a",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "function": "MemRecursorCache::updateValidationStatus",
            "file": "pdns/recursor_cache.cc"
        },
        "digest": {
            "length": 729.0,
            "function_hash": "77679631441445527983920042920211549080"
        },
        "signature_type": "Function"
    },
    {
        "source": "https://github.com/powerdns/pdns/commit/77409aab0be43071b365760213894d6388c3df30",
        "id": "CVE-2020-25829-e5cd83e1",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "pdns/recursor_cache.cc"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "47417538831777855470350430050715081350",
                "148055263521903558314326114750883219758",
                "35080228024880871007699290772856527215",
                "67316773013314591480806366431856137347",
                "117026657073042240224421905896698093643",
                "323213353731232169172399806756170124246",
                "155500896485175737294500301755246166961",
                "224196667708172987418133306458664934984",
                "144653575526639387313445865962482611461",
                "103108929300239247840240085865274340062",
                "32309045751000532166148983162358670769",
                "252546257047801208426498952786257063949"
            ]
        },
        "signature_type": "Line"
    }
]