Vulnerability-Lookup

CNVD-2021-01998

Vulnerability from cnvd - Published: 2021-01-11

Title

FFmpeg缓冲区溢出漏洞（CNVD-2021-01998）

Description

FFmpeg是FFmpeg（Ffmpeg）团队的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg 4.3.1版本存在缓冲区溢出漏洞，该漏洞源于计算何时执行memset零操作时出现了错误。目前没有详细的漏洞细节提供。

Severity

中

Patch Name

FFmpeg缓冲区溢出漏洞（CNVD-2021-01998）的补丁

Patch Description

FFmpeg是FFmpeg（Ffmpeg）团队的一套可录制、转换以及流化音视频的完整解决方案。 FFmpeg 4.3.1版本存在缓冲区溢出漏洞，该漏洞源于计算何时执行memset零操作时出现了错误。目前没有详细的漏洞细节提供。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://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-35965

Impacted products

Name
FFmpeg Ffmpeg 4.3.1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-35965",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-35965"
    }
  },
  "description": "FFmpeg\u662fFFmpeg\uff08Ffmpeg\uff09\u56e2\u961f\u7684\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 4.3.1\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8ba1\u7b97\u4f55\u65f6\u6267\u884cmemset\u96f6\u64cd\u4f5c\u65f6\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-01998",
  "openTime": "2021-01-11",
  "patchDescription": "FFmpeg\u662fFFmpeg\uff08Ffmpeg\uff09\u56e2\u961f\u7684\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 4.3.1\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8ba1\u7b97\u4f55\u65f6\u6267\u884cmemset\u96f6\u64cd\u4f5c\u65f6\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-01998\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "FFmpeg Ffmpeg 4.3.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-35965",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-08",
  "title": "FFmpeg\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-01998\uff09"
}

CVE-2020-35965 (GCVE-0-2020-35965)

Vulnerability from cvelistv5 – Published: 2021-01-04 01:07 – Updated: 2024-08-04 17:16

Summary

decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

6 references

URL	Tags
https://github.com/FFmpeg/FFmpeg/commit/b0a8b4029…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://github.com/FFmpeg/FFmpeg/commit/3e5959b34…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202105-24	vendor-advisoryx_refsource_GENTOO
https://www.debian.org/security/2021/dsa-4990	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T17:16:13.456Z",
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            "url": "https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3"
          },
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            ],
            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26532"
          },
          {
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              "x_refsource_MISC",
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            "url": "https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b"
          },
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            "name": "[debian-lts-announce] 20210131 [SECURITY] [DLA 2537-1] ffmpeg security update",
            "tags": [
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            "name": "GLSA-202105-24",
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            "url": "https://security.gentoo.org/glsa/202105-24"
          },
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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.
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CNVD-2021-01998

CVE-2020-35965 (GCVE-0-2020-35965)

Tags

Sightings

Nomenclature

Related by attack behaviour