cnvd - cnvd-2016-05682

cnvd-2016-05682

Vulnerability from cnvd

Title: MIT Kerberos拒绝服务漏洞（CNVD-2016-05682）

Description:

MIT Kerberos 5（又名krb5）是美国麻省理工学院（MIT）开发的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。

MIT Kerberos 5 1.9及之后的版本中存在拒绝服务漏洞。攻击者可利用该漏洞使受影响的KDC服务崩溃，造成拒绝服务（空指针逆向引用）。

Severity: 中

Patch Name: MIT Kerberos拒绝服务漏洞（CNVD-2016-05682）的补丁

Patch Description:

MIT Kerberos 5 1.9及之后的版本中存在拒绝服务漏洞。攻击者可利用该漏洞使受影响的KDC服务崩溃，造成拒绝服务（空指针逆向引用）。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此安全问题，补丁获取链接： http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458

Reference: http://www.securityfocus.com/bid/92132

Impacted products

Name
MIT Kerberos >=5.1.9

Show details on source website

JSON

To clipboard

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  "bids": {
    "bid": {
      "bidNumber": "92132"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-3120"
    }
  },
  "description": "MIT Kerberos 5\uff08\u53c8\u540dkrb5\uff09\u662f\u7f8e\u56fd\u9ebb\u7701\u7406\u5de5\u5b66\u9662\uff08MIT\uff09\u5f00\u53d1\u7684\u4e00\u5957\u7f51\u7edc\u8ba4\u8bc1\u534f\u8bae\uff0c\u5b83\u91c7\u7528\u5ba2\u6237\u7aef/\u670d\u52a1\u5668\u7ed3\u6784\uff0c\u5e76\u4e14\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u5747\u53ef\u5bf9\u5bf9\u65b9\u8fdb\u884c\u8eab\u4efd\u8ba4\u8bc1\uff08\u5373\u53cc\u91cd\u9a8c\u8bc1\uff09\uff0c\u53ef\u9632\u6b62\u7a83\u542c\u3001\u9632\u6b62replay\u653b\u51fb\u7b49\u3002\r\n\r\nMIT Kerberos 5 1.9\u53ca\u4e4b\u540e\u7684\u7248\u672c\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u53d7\u5f71\u54cd\u7684KDC\u670d\u52a1\u5d29\u6e83\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\u3002",
  "discovererName": "MIT",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-05682",
  "openTime": "2016-07-29",
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  "patchName": "MIT Kerberos\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-05682\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "MIT Kerberos \u003e=5.1.9"
  },
  "referenceLink": "http://www.securityfocus.com/bid/92132",
  "serverity": "\u4e2d",
  "submitTime": "2016-07-28",
  "title": "MIT Kerberos\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2016-05682\uff09"
}

CVE-2016-3120 (GCVE-0-2016-3120)

Vulnerability from cvelistv5

Published

2016-08-01 01:00

Modified

2024-08-05 23:47

Severity ?

CWE

Summary

The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.

References

▼	URL	Tags
	https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/92132	vdb-entry, x_refsource_BID
	https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html	mailing-list, x_refsource_MLIST
	http://lists.opensuse.org/opensuse-updates/2016-09/msg00035.html	vendor-advisory, x_refsource_SUSE
	http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1036442	vdb-entry, x_refsource_SECTRACK
	http://web.mit.edu/kerberos/krb5-1.13/	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2016-2591.html	vendor-advisory, x_refsource_REDHAT
	http://web.mit.edu/kerberos/krb5-1.14/	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35/	vendor-advisory, x_refsource_FEDORA

Impacted products

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

Show details on NVD website

JSON

To clipboard

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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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