Vulnerability-Lookup

CNVD-2017-04273

Vulnerability from cnvd - Published: 2017-04-11

Title

libav拒绝服务漏洞（CNVD-2017-04273）

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 9.21版本的libavcodec中的decode_residual函数存在拒绝服务漏洞。远程攻击者可借助特制的h264视频文件利用该漏洞造成拒绝服务（缓冲区越边界读取）或获取进程内存中的敏感信息。

Severity

中

Patch Name

libav拒绝服务漏洞（CNVD-2017-04273）的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接: https://bugzilla.libav.org/show_bug.cgi?id=1000

Reference

https://bugzilla.libav.org/show_bug.cgi?id=1000 http://www.securityfocus.com/bid/97005

Impacted products

Name
Libav Libav 9.21

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "97005"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7208",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7208"
    }
  },
  "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 9.21\u7248\u672c\u7684libavcodec\u4e2d\u7684decode_residual\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684h264\u89c6\u9891\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7f13\u51b2\u533a\u8d8a\u8fb9\u754c\u8bfb\u53d6\uff09\u6216\u83b7\u53d6\u8fdb\u7a0b\u5185\u5b58\u4e2d\u7684\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "Kamil Frankowicz.",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5:\r\nhttps://bugzilla.libav.org/show_bug.cgi?id=1000",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-04273",
  "openTime": "2017-04-11",
  "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 9.21\u7248\u672c\u7684libavcodec\u4e2d\u7684decode_residual\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684h264\u89c6\u9891\u6587\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7f13\u51b2\u533a\u8d8a\u8fb9\u754c\u8bfb\u53d6\uff09\u6216\u83b7\u53d6\u8fdb\u7a0b\u5185\u5b58\u4e2d\u7684\u654f\u611f\u4fe1\u606f\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-04273\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Libav Libav 9.21"
  },
  "referenceLink": "https://bugzilla.libav.org/show_bug.cgi?id=1000\r\nhttp://www.securityfocus.com/bid/97005",
  "serverity": "\u4e2d",
  "submitTime": "2017-03-22",
  "title": "libav\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-04273\uff09"
}

CVE-2017-7208 (GCVE-0-2017-7208)

Vulnerability from cvelistv5 – Published: 2017-03-21 06:21 – Updated: 2024-08-05 15:56

Summary

The decode_residual function in libavcodec in libav 9.21 allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
http://www.securityfocus.com/bid/97005	vdb-entryx_refsource_BID
https://bugzilla.libav.org/show_bug.cgi?id=1000	x_refsource_CONFIRM
http://www.debian.org/security/2017/dsa-4012	vendor-advisoryx_refsource_DEBIAN

Date Public

2017-03-21 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T15:56:35.997Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            ],
            "url": "http://www.securityfocus.com/bid/97005"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.libav.org/show_bug.cgi?id=1000"
          },
          {
            "name": "DSA-4012",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2017/dsa-4012"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
            }
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      "descriptions": [
        {
          "lang": "en",
          "value": "The decode_residual function in libavcodec in libav 9.21 allows remote attackers to cause a denial of service (buffer over-read) or obtain sensitive information from process memory via a crafted h264 video file."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
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      "providerMetadata": {
        "dateUpdated": "2017-11-03T18:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          "name": "97005",
          "tags": [
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            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/97005"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.libav.org/show_bug.cgi?id=1000"
        },
        {
          "name": "DSA-4012",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2017/dsa-4012"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-7208",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
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              "refsource": "CONFIRM",
              "url": "https://bugzilla.libav.org/show_bug.cgi?id=1000"
            },
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  "cveMetadata": {
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    "assignerShortName": "mitre",
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    "datePublished": "2017-03-21T06:21:00.000Z",
    "dateReserved": "2017-03-21T00:00:00.000Z",
    "dateUpdated": "2024-08-05T15:56:35.997Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.