cnvd - cnvd-2015-07634

cnvd-2015-07634

Vulnerability from cnvd

Title: MIT Kerberos 5缓冲区溢出漏洞

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 1.14 beta2版本的lib/gssapi/krb5/iakerb.c文件中的‘iakerb_gss_export_sec_context’函数存在安全漏洞。由于程序未能正确使用指针。远程攻击者可通过与调用‘gss_export_sec_context’函数的应用程序交互利用该漏洞造成拒绝服务（内存损坏）。（说明：该漏洞由于CNNVD-201511-133补丁的不完全修复存在）

Severity: 高

Patch Name: MIT Kerberos 5缓冲区溢出漏洞的补丁

Patch 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 1.14 beta2版本的lib/gssapi/krb5/iakerb.c文件中的‘iakerb_gss_export_sec_context’函数存在安全漏洞。由于程序未能正确使用指针。远程攻击者可通过与调用‘gss_export_sec_context’函数的应用程序交互利用该漏洞造成拒绝服务（内存损坏）。（说明：该漏洞由于CNNVD-201511-133补丁的不完全修复存在）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:

用户可参考如下供应商提供的安全公告获得补丁信息： https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd

Reference: http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273 https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd

Impacted products

Name
MIT Kerberos 5 1.14

Show details on source website

JSON

To clipboard

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      "cveNumber": "CVE-2015-2698"
    }
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  "discovererName": "ghudson",
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  "number": "CNVD-2015-07634",
  "openTime": "2015-11-18",
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  "patchName": "MIT Kerberos 5\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "MIT Kerberos 5 1.14"
  },
  "referenceLink": "http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273 \r\nhttps://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd",
  "serverity": "\u9ad8",
  "submitTime": "2015-11-17",
  "title": "MIT Kerberos 5\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2015-2698 (GCVE-0-2015-2698)

Vulnerability from cvelistv5

Published

2015-11-13 02:00

Modified

2024-08-06 05:24

Severity ?

CWE

Summary

The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.

References

▼	URL	Tags
	https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd	x_refsource_CONFIRM
	http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-updates/2015-11/msg00116.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-updates/2015-12/msg00124.html	vendor-advisory, x_refsource_SUSE
	http://www.ubuntu.com/usn/USN-2810-1	vendor-advisory, x_refsource_UBUNTU

Impacted products

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

Show details on NVD website

JSON

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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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