Vulnerability-Lookup

CNVD-2015-05937

Vulnerability from cnvd - Published: 2015-09-10

Title

FFmpeg ff_sbr_apply拒绝服务漏洞

Description

FFmpeg是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 2.7.2之前版本的libavcodec/aacsbr.c文件中的‘ff_sbr_apply’函数存在安全漏洞，该漏洞源于程序执行Spectral Band Replication计算前未能检查匹配的AAC框架的语法元素。远程攻击者可借助特制的AAC数据利用该漏洞造成拒绝服务（越边界数组访问）。

Severity

高

Patch Name

FFmpeg ff_sbr_apply拒绝服务漏洞的补丁

Patch Description

FFmpeg是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 2.7.2之前版本的libavcodec/aacsbr.c文件中的‘ff_sbr_apply’函数存在安全漏洞，该漏洞源于程序执行Spectral Band Replication计算前未能检查匹配的AAC框架的语法元素。远程攻击者可借助特制的AAC数据利用该漏洞造成拒绝服务（越边界数组访问）。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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： http://git.videolan.org/?p=ffmpeg.git;a=commit;h=79a98294da6cd85f8c86b34764c5e0c43b09eea3

Reference

http://git.videolan.org/?p=ffmpeg.git;a=commit;h=79a98294da6cd85f8c86b34764c5e0c43b09eea3

Impacted products

Name
FFmpeg FFmpeg <2.7.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-6820"
    }
  },
  "description": "FFmpeg\u662fFFmpeg\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 2.7.2\u4e4b\u524d\u7248\u672c\u7684libavcodec/aacsbr.c\u6587\u4ef6\u4e2d\u7684\u2018ff_sbr_apply\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6267\u884cSpectral Band Replication\u8ba1\u7b97\u524d\u672a\u80fd\u68c0\u67e5\u5339\u914d\u7684AAC\u6846\u67b6\u7684\u8bed\u6cd5\u5143\u7d20\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684AAC\u6570\u636e\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u6570\u7ec4\u8bbf\u95ee\uff09\u3002",
  "discovererName": "Michael Niedermayer",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttp://git.videolan.org/?p=ffmpeg.git;a=commit;h=79a98294da6cd85f8c86b34764c5e0c43b09eea3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-05937",
  "openTime": "2015-09-10",
  "patchDescription": "FFmpeg\u662fFFmpeg\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\u3002FFmpeg 2.7.2\u4e4b\u524d\u7248\u672c\u7684libavcodec/aacsbr.c\u6587\u4ef6\u4e2d\u7684\u2018ff_sbr_apply\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6267\u884cSpectral Band Replication\u8ba1\u7b97\u524d\u672a\u80fd\u68c0\u67e5\u5339\u914d\u7684AAC\u6846\u67b6\u7684\u8bed\u6cd5\u5143\u7d20\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684AAC\u6570\u636e\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u6570\u7ec4\u8bbf\u95ee\uff09\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 ff_sbr_apply\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "FFmpeg FFmpeg \u003c2.7.2"
  },
  "referenceLink": "http://git.videolan.org/?p=ffmpeg.git;a=commit;h=79a98294da6cd85f8c86b34764c5e0c43b09eea3",
  "serverity": "\u9ad8",
  "submitTime": "2015-09-09",
  "title": "FFmpeg ff_sbr_apply\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-6820 (GCVE-0-2015-6820)

Vulnerability from cvelistv5 – Published: 2015-09-06 01:00 – Updated: 2024-08-06 07:29

Summary

The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2944-1	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
http://www.securitytracker.com/id/1033483	vdb-entryx_refsource_SECTRACK
http://ffmpeg.org/security.html	x_refsource_CONFIRM

Date Public

2015-07-18 00:00

Show details on NVD website

JSON

To clipboard

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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.

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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Action not permitted

CNVD-2015-05937

CVE-2015-6820 (GCVE-0-2015-6820)

Tags

Sightings

Nomenclature

Related by attack behaviour