cnvd - cnvd-2016-00840

cnvd-2016-00840

Vulnerability from cnvd

Title: libEBML信息泄露漏洞（CNVD-2016-00840）

Description:

libEBML是Matroska团队负责维护的一个用于解析EBML文件的C++库。

libEBML本的‘EbmlElement::ReadCodedSizeValue’函数存在安全漏洞，允许攻击者可利用特制EBML ID中特制的长度值获取进程堆内存中的敏感信息。

Severity: 中

Patch Name: libEBML信息泄露漏洞（CNVD-2016-00840）的补丁

Patch Description:

libEBML是Matroska团队负责维护的一个用于解析EBML文件的C++库。

libEBML本的‘EbmlElement::ReadCodedSizeValue’函数存在安全漏洞，允许攻击者可利用特制EBML ID中特制的长度值获取进程堆内存中的敏感信息。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:

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog

Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8791

Impacted products

Name
Matroska libEBML <1.3.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8791"
    }
  },
  "description": "libEBML\u662fMatroska\u56e2\u961f\u8d1f\u8d23\u7ef4\u62a4\u7684\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790EBML\u6587\u4ef6\u7684C++\u5e93\u3002\r\n\r\nlibEBML\u672c\u7684\u2018EbmlElement::ReadCodedSizeValue\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u53ef\u5229\u7528\u7279\u5236EBML ID\u4e2d\u7279\u5236\u7684\u957f\u5ea6\u503c\u83b7\u53d6\u8fdb\u7a0b\u5806\u5185\u5b58\u4e2d\u7684\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "Moritz Bunkus",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-00840",
  "openTime": "2016-02-14",
  "patchDescription": "libEBML\u662fMatroska\u56e2\u961f\u8d1f\u8d23\u7ef4\u62a4\u7684\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790EBML\u6587\u4ef6\u7684C++\u5e93\u3002\r\n\r\nlibEBML\u672c\u7684\u2018EbmlElement::ReadCodedSizeValue\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u653b\u51fb\u8005\u53ef\u5229\u7528\u7279\u5236EBML ID\u4e2d\u7279\u5236\u7684\u957f\u5ea6\u503c\u83b7\u53d6\u8fdb\u7a0b\u5806\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": "libEBML\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-00840\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Matroska libEBML \u003c1.3.3"
  },
  "referenceLink": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8791",
  "serverity": "\u4e2d",
  "submitTime": "2016-02-02",
  "title": "libEBML\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-00840\uff09"
}

CVE-2015-8791 (GCVE-0-2015-8791)

Vulnerability from cvelistv5

Published

2016-01-29 19:00

Modified

2024-08-06 08:29

Severity ?

CWE

Summary

The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted length value in an EBML id, which triggers an invalid memory access.

References

▼	URL	Tags
	http://www.debian.org/security/2016/dsa-3538	vendor-advisory, x_refsource_DEBIAN
	https://github.com/Matroska-Org/libebml/commit/24e5cd7c666b1ddd85619d60486db0a5481c1b90	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html	vendor-advisory, x_refsource_SUSE
	http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html	mailing-list, x_refsource_MLIST
	https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog	x_refsource_CONFIRM

Impacted products

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

Show details on NVD website

JSON

To clipboard

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          },
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            "url": "https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog"
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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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