cnvd - cnvd-2021-01998

cnvd-2021-01998

Vulnerability from cnvd

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

Modified

2024-08-04 17:16

Severity ?

CWE

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.

References

▼	URL	Tags
	https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3	x_refsource_MISC
	https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26532	x_refsource_MISC
	https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html	mailing-list, x_refsource_MLIST
	https://security.gentoo.org/glsa/202105-24	vendor-advisory, x_refsource_GENTOO
	https://www.debian.org/security/2021/dsa-4990	vendor-advisory, x_refsource_DEBIAN

Impacted products

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

Show details on NVD website

JSON

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          },
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}

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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