cnvd - cnvd-2021-40485

cnvd-2021-40485

Vulnerability from cnvd

Title: FFmpeg拒绝服务漏洞（CNVD-2021-40485）

Description:

FFmpeg是一套可录制、转换以及流化音视频的完整解决方案。

FFmpeg存在安全漏洞，该漏洞源于libavutil float dsp.c中的avpriv float dsp allocl函数存在内存泄漏。攻击者可利用该漏洞造成拒绝服务攻击。

Severity: 中

Patch Name: FFmpeg拒绝服务漏洞（CNVD-2021-40485）的补丁

Patch Description:

FFmpeg是一套可录制、转换以及流化音视频的完整解决方案。

FFmpeg存在安全漏洞，该漏洞源于libavutil float dsp.c中的avpriv float dsp allocl函数存在内存泄漏。攻击者可利用该漏洞造成拒绝服务攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://trac.ffmpeg.org/ticket/8294

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-22046

Impacted products

Name
FFmpeg FFmpeg 4.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-22046"
    }
  },
  "description": "FFmpeg\u662f\u4e00\u5957\u53ef\u5f55\u5236\u3001\u8f6c\u6362\u4ee5\u53ca\u6d41\u5316\u97f3\u89c6\u9891\u7684\u5b8c\u6574\u89e3\u51b3\u65b9\u6848\u3002\n\nFFmpeg\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibavutil float dsp.c\u4e2d\u7684avpriv float dsp allocl\u51fd\u6570\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://trac.ffmpeg.org/ticket/8294",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40485",
  "openTime": "2021-06-09",
  "patchDescription": "FFmpeg\u662f\u4e00\u5957\u53ef\u5f55\u5236\u3001\u8f6c\u6362\u4ee5\u53ca\u6d41\u5316\u97f3\u89c6\u9891\u7684\u5b8c\u6574\u89e3\u51b3\u65b9\u6848\u3002\r\n\r\nFFmpeg\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibavutil float dsp.c\u4e2d\u7684avpriv float dsp allocl\u51fd\u6570\u5b58\u5728\u5185\u5b58\u6cc4\u6f0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "FFmpeg\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-40485\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "FFmpeg FFmpeg 4.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-22046",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-04",
  "title": "FFmpeg\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-40485\uff09"
}

CVE-2020-22046 (GCVE-0-2020-22046)

Vulnerability from cvelistv5

Published

2021-06-02 15:10

Modified

2024-08-04 14:51

Severity ?

CWE

Summary

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl function in libavutil/float_dsp.c.

References

▼	URL	Tags
	https://trac.ffmpeg.org/ticket/8294	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T14:51:10.485Z",
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            ],
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          },
          {
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            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html"
          }
        ],
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      }
    ],
    "cna": {
      "affected": [
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          "versions": [
            {
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            }
          ]
        }
      ],
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          "value": "A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl function in libavutil/float_dsp.c."
        }
      ],
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              "lang": "en",
              "type": "text"
            }
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      "providerMetadata": {
        "dateUpdated": "2021-11-14T22:06:22",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
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        },
        {
          "name": "[debian-lts-announce] 20211114 [SECURITY] [DLA 2818-1] ffmpeg security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-22046",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
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                "vendor_name": "n/a"
              }
            ]
          }
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        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the avpriv_float_dsp_allocl function in libavutil/float_dsp.c."
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  "cveMetadata": {
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    "datePublished": "2021-06-02T15:10:23",
    "dateReserved": "2020-08-13T00:00:00",
    "dateUpdated": "2024-08-04T14:51:10.485Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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