Vulnerability-Lookup

FKIE_CVE-2018-20199

Vulnerability from fkie_nvd - Published: 2018-12-18 01:29 - Updated: 2026-06-17 01:52

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.

References

URL	Tags
cve@mitre.org	https://github.com/knik0/faad2/issues/24	Exploit, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2019/08/msg00033.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2021/10/msg00020.html	Mailing List, Third Party Advisory
cve@mitre.org	https://security.gentoo.org/glsa/202006-17	Third Party Advisory
cve@mitre.org	https://www.debian.org/security/2022/dsa-5109	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/knik0/faad2/issues/24	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2019/08/msg00033.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/10/msg00020.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202006-17	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2022/dsa-5109	Third Party Advisory

Impacted products

Vendor	Product	Version
audiocoding	freeware_advanced_audio_decoder_2	*
debian	debian_linux	8.0
debian	debian_linux	9.0
debian	debian_linux	10.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:audiocoding:freeware_advanced_audio_decoder_2:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "54DD28AC-27DA-4EFA-9AD4-392874D012BE",
              "versionEndExcluding": "2.9.0",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
      ]
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    {
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              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto una desreferencia de puntero NULL en ifilter_bank de libfaad/filtbank.c en Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. Esta vulnerabilidad causa un error de segmentaci\u00f3n y el cierre inesperado de la aplicaci\u00f3n, lo que da lugar a una denegaci\u00f3n de servicio en el caso ONLY_LONG_SEQUENCE."
    }
  ],
  "id": "CVE-2018-20199",
  "lastModified": "2026-06-17T01:52:27.033",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
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          "baseScore": 5.5,
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          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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  "published": "2018-12-18T01:29:00.470",
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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"
    }
  ]
}

CVE-2018-20199 (GCVE-0-2018-20199)

Vulnerability from cvelistv5 – Published: 2018-12-18 01:00 – Updated: 2024-08-05 11:58

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://github.com/knik0/faad2/issues/24	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202006-17	vendor-advisoryx_refsource_GENTOO
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2022/dsa-5109	vendor-advisoryx_refsource_DEBIAN

Date Public

2018-12-17 00:00

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

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.

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.