cnvd - cnvd-2018-06451

CNVD-2018-06451

Vulnerability from cnvd - Published: 2018-03-27

Title

Libav 'av_audio_fifo_size'函数空指针引用漏洞

Description

Libav（前身是FFmpeg）是Libav团队的一套跨平台的可对音频和视频进行录制、转换的解决方案，它包含了一个libavcodec编码器。 Libav 12.2版本中的libavutil/audio_fifo.c文件的'av_audio_fifo_size'函数存在安全漏洞。远程攻击者可借助特制的媒体文件利用该漏洞造成拒绝服务（空指针逆向引用）。

Severity

中

Patch Name

Libav 'av_audio_fifo_size'函数空指针引用漏洞的补丁

Patch Description

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://bugzilla.libav.org/show_bug.cgi?id=1089

Reference

https://bugzilla.libav.org/show_bug.cgi?id=1089

Impacted products

Name
Libav Libav 12.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-18247"
    }
  },
  "description": "Libav\uff08\u524d\u8eab\u662fFFmpeg\uff09\u662fLibav\u56e2\u961f\u7684\u4e00\u5957\u8de8\u5e73\u53f0\u7684\u53ef\u5bf9\u97f3\u9891\u548c\u89c6\u9891\u8fdb\u884c\u5f55\u5236\u3001\u8f6c\u6362\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2alibavcodec\u7f16\u7801\u5668\u3002\r\n\r\nLibav 12.2\u7248\u672c\u4e2d\u7684libavutil/audio_fifo.c\u6587\u4ef6\u7684\u0027av_audio_fifo_size\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5a92\u4f53\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\u3002",
  "discovererName": "Mingi Cho",
  "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://bugzilla.libav.org/show_bug.cgi?id=1089",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-06451",
  "openTime": "2018-03-27",
  "patchDescription": "Libav\uff08\u524d\u8eab\u662fFFmpeg\uff09\u662fLibav\u56e2\u961f\u7684\u4e00\u5957\u8de8\u5e73\u53f0\u7684\u53ef\u5bf9\u97f3\u9891\u548c\u89c6\u9891\u8fdb\u884c\u5f55\u5236\u3001\u8f6c\u6362\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u5b83\u5305\u542b\u4e86\u4e00\u4e2alibavcodec\u7f16\u7801\u5668\u3002\r\n\r\nLibav 12.2\u7248\u672c\u4e2d\u7684libavutil/audio_fifo.c\u6587\u4ef6\u7684\u0027av_audio_fifo_size\u0027\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5a92\u4f53\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\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": "Libav \u0027av_audio_fifo_size\u0027\u51fd\u6570\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Libav Libav 12.2"
  },
  "referenceLink": "https://bugzilla.libav.org/show_bug.cgi?id=1089",
  "serverity": "\u4e2d",
  "submitTime": "2018-03-27",
  "title": "Libav \u0027av_audio_fifo_size\u0027\u51fd\u6570\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2017-18247 (GCVE-0-2017-18247)

Vulnerability from cvelistv5 – Published: 2018-03-23 19:00 – Updated: 2024-09-17 04:29

Summary

The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://bugzilla.libav.org/show_bug.cgi?id=1089

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T21:13:49.234Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.libav.org/show_bug.cgi?id=1089"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The av_audio_fifo_size function in libavutil/audio_fifo.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted media file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-03-23T19:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.libav.org/show_bug.cgi?id=1089"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-18247",
          "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",
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        },
        "references": {
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2018-03-23T19:00:00Z",
    "dateReserved": "2018-03-23T00:00:00Z",
    "dateUpdated": "2024-09-17T04:29:27.146Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2018-06451

CVE-2017-18247 (GCVE-0-2017-18247)

Tags

Sightings

Nomenclature