CVE-2020-25866 (GCVE-0-2020-25866)
Vulnerability from cvelistv5 – Published: 2020-10-06 14:42 – Updated: 2024-08-04 15:49
VLAI
EPSS
VEX
Summary
In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://www.wireshark.org/security/wnpa-sec-2020-… | x_refsource_MISC |
| https://gitlab.com/wireshark/wireshark/-/issues/16866 | x_refsource_MISC |
| https://gitlab.com/wireshark/wireshark/-/commit/4… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://www.oracle.com/security-alerts/cpujan2021.html | x_refsource_MISC |
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"matchCriteriaId": "B009C22E-30A4-4288-BCF6-C3E81DEAF45A",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*",
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"vulnerable": true
}
],
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}
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In Wireshark 3.2.0 to 3.2.6 and 3.0.0 to 3.0.13, the BLIP protocol dissector has a NULL pointer dereference because a buffer was sized for compressed (not uncompressed) messages. This was addressed in epan/dissectors/packet-blip.c by allowing reasonable compression ratios and rejecting ZIP bombs."
},
{
"lang": "es",
"value": "En Wireshark versiones 3.2.0 hasta 3.2.6 y versiones 3.0.0 hasta 3.0.13, el disector del protocolo BLIP presenta una desreferencia del puntero NULL porque un b\u00fafer fue dimensionado para mensajes comprimidos (no sin comprimir).\u0026#xa0;Esto fue abordado en el archivo epan/disactors/packet-blip.c permitiendo relaciones de compresi\u00f3n razonables y rechazando las bombas ZIP"
}
],
"id": "CVE-2020-25866",
"lastModified": "2024-11-21T05:18:56.190",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
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"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-10-06T15:15:15.413",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html"
},
{
"source": "cve@mitre.org",
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"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html"
},
{
"source": "cve@mitre.org",
"tags": [
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],
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},
{
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"Issue Tracking",
"Third Party Advisory"
],
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},
{
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/"
},
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},
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://www.oracle.com/security-alerts/cpujan2021.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.wireshark.org/security/wnpa-sec-2020-13.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html"
},
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"tags": [
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],
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
"url": "https://gitlab.com/wireshark/wireshark/-/commit/4a948427100b6c109f4ec7b4361f0d2aec5e5c3f"
},
{
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"tags": [
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"Third Party Advisory"
],
"url": "https://gitlab.com/wireshark/wireshark/-/issues/16866"
},
{
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DQHPKZFQ7W3X34RYN3FWFYCFJD4FXJW/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGRYKW4XLR44YDWTAH547ODYYBYPB2D/"
},
{
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUHMK5HYTUUDXA64T2TAMAFMYV674QBW/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://www.oracle.com/security-alerts/cpujan2021.html"
},
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"tags": [
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],
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}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T16:58:17+00:00",
"cve": "CVE-2020-25866",
"id": "CVE-2020-25866",
"initial_release_date": "2020-09-23T00:00:00+00:00",
"product_status:known_not_affected": "13",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "wireshark: BLIP dissector crash (wnpa-sec-2020-13)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-25866.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-22T17:09:06Z",
"cve": "CVE-2020-25866",
"id": "CVE-2020-25866",
"initial_release_date": "2023-02-15T03:53:25Z",
"product_status:known_affected": "31",
"product_status:known_not_affected": "158",
"product_status:recommended": "348",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2020-25866",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-25866.json",
"version": "20"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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