gsd-2020-20902
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R'(0), that could result in disclosure of information.
Aliases
Aliases
CVE-2020-20902


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-20902",
    "description": "A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R\u0027(0), that could result in disclosure of information.",
    "id": "GSD-2020-20902",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-20902.html",
      "https://ubuntu.com/security/CVE-2020-20902"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-20902"
      ],
      "details": "A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R\u0027(0), that could result in disclosure of information.",
      "id": "GSD-2020-20902",
      "modified": "2023-12-13T01:21:48.512327Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-20902",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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          }
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                "value": "n/a"
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://trac.ffmpeg.org/ticket/8176",
            "refsource": "MISC",
            "url": "https://trac.ffmpeg.org/ticket/8176"
          },
          {
            "name": "http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=0c61661a2cbe1b8b284c80ada1c2fdddf4992cad",
            "refsource": "MISC",
            "url": "http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=0c61661a2cbe1b8b284c80ada1c2fdddf4992cad"
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        ]
      }
    },
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            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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          "ID": "CVE-2020-20902"
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        "description": {
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              "lang": "en",
              "value": "A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R\u0027(0), that could result in disclosure of information."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
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                  "value": "CWE-125"
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        "references": {
          "reference_data": [
            {
              "name": "http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=0c61661a2cbe1b8b284c80ada1c2fdddf4992cad",
              "refsource": "MISC",
              "tags": [
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                "Third Party Advisory"
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            },
            {
              "name": "https://trac.ffmpeg.org/ticket/8176",
              "refsource": "MISC",
              "tags": [
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                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://trac.ffmpeg.org/ticket/8176"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-10-01T23:34Z",
      "publishedDate": "2021-09-20T16:15Z"
    }
  }
}


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