Vulnerability-Lookup

CNVD-2020-13571

Vulnerability from cnvd - Published: 2020-02-26

Title

FFmpeg空指针解引用漏洞

Description

FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序，采用LGPL或GPL许可证。 FFmpeg 4.2之前版本中的libavcodec/utils.c中的avcodec_open2存在空指针解引用漏洞，攻击者可利用该漏洞导致拒绝服务。

Severity

高

Patch Name

FFmpeg空指针解引用漏洞的补丁

Patch Description

FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序，采用LGPL或GPL许可证。 FFmpeg 4.2之前版本中的libavcodec/utils.c中的avcodec_open2存在空指针解引用漏洞，攻击者可利用该漏洞导致拒绝服务。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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-17539

Impacted products

Name
FFmpeg Ffmpeg <4.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-17539",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-17539"
    }
  },
  "description": "FFmpeg\u662f\u4e00\u5957\u53ef\u4ee5\u7528\u6765\u8bb0\u5f55\u3001\u8f6c\u6362\u6570\u5b57\u97f3\u9891\u3001\u89c6\u9891\uff0c\u5e76\u80fd\u5c06\u5176\u8f6c\u5316\u4e3a\u6d41\u7684\u5f00\u6e90\u8ba1\u7b97\u673a\u7a0b\u5e8f\uff0c\u91c7\u7528LGPL\u6216GPL\u8bb8\u53ef\u8bc1\u3002\n\nFFmpeg 4.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684libavcodec/utils.c\u4e2d\u7684avcodec_open2\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-13571",
  "openTime": "2020-02-26",
  "patchDescription": "FFmpeg\u662f\u4e00\u5957\u53ef\u4ee5\u7528\u6765\u8bb0\u5f55\u3001\u8f6c\u6362\u6570\u5b57\u97f3\u9891\u3001\u89c6\u9891\uff0c\u5e76\u80fd\u5c06\u5176\u8f6c\u5316\u4e3a\u6d41\u7684\u5f00\u6e90\u8ba1\u7b97\u673a\u7a0b\u5e8f\uff0c\u91c7\u7528LGPL\u6216GPL\u8bb8\u53ef\u8bc1\u3002\r\n\r\nFFmpeg 4.2\u4e4b\u524d\u7248\u672c\u4e2d\u7684libavcodec/utils.c\u4e2d\u7684avcodec_open2\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "FFmpeg Ffmpeg \u003c4.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-17539",
  "serverity": "\u9ad8",
  "submitTime": "2019-10-14",
  "title": "FFmpeg\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2019-17539 (GCVE-0-2019-17539)

Vulnerability from cvelistv5 – Published: 2019-10-14 01:09 – Updated: 2024-08-05 01:40

Summary

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://github.com/FFmpeg/FFmpeg/commit/8df688483…	x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detai…	x_refsource_MISC
https://security.gentoo.org/glsa/202003-65	vendor-advisoryx_refsource_GENTOO
https://www.debian.org/security/2020/dsa-4722	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4431-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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            "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733"
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            "name": "DSA-4722",
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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.