Vulnerability-Lookup

CNVD-2016-01134

Vulnerability from cnvd - Published: 2016-02-19

Title

MIT Kerberos 5 kadmind拒绝服务漏洞

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 1.13.4之前版本和1.14.1之前1.14.x版本的kadmind服务程序中的lib/kadm5/kadm_rpc_xdr.c文件中的‘xdr_nullstring’函数存在安全漏洞，该漏洞源于程序未能验证‘\0’字符是否存在。远程攻击者可借助特制的字符串利用该漏洞获取敏感信息，或造成拒绝服务（越边界读取）。

Severity

中

Patch Name

MIT Kerberos 5 kadmind拒绝服务漏洞的补丁

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： http://krbdev.mit.edu/rt/Ticket/Display.html?id=8341

Reference

https://github.com/krb5/krb5/commit/df17a1224a3406f57477bcd372c61e04c0e5a5bb http://krbdev.mit.edu/rt/Ticket/Display.html?id=8341 https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8629

Impacted products

Name
['MIT Kerberos 5 <1.13.4', 'MIT Kerberos 5 1.14.x(<1.14.1)']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-8629"
    }
  },
  "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 1.13.4\u4e4b\u524d\u7248\u672c\u548c1.14.1\u4e4b\u524d1.14.x\u7248\u672c\u7684kadmind\u670d\u52a1\u7a0b\u5e8f\u4e2d\u7684lib/kadm5/kadm_rpc_xdr.c\u6587\u4ef6\u4e2d\u7684\u2018xdr_nullstring\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9a8c\u8bc1\u2018\\0\u2019\u5b57\u7b26\u662f\u5426\u5b58\u5728\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\uff0c\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u53d6\uff09\u3002",
  "discovererName": "ghudson@mit.edu",
  "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\uff1a\r\nhttp://krbdev.mit.edu/rt/Ticket/Display.html?id=8341",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01134",
  "openTime": "2016-02-19",
  "patchDescription": "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 1.13.4\u4e4b\u524d\u7248\u672c\u548c1.14.1\u4e4b\u524d1.14.x\u7248\u672c\u7684kadmind\u670d\u52a1\u7a0b\u5e8f\u4e2d\u7684lib/kadm5/kadm_rpc_xdr.c\u6587\u4ef6\u4e2d\u7684\u2018xdr_nullstring\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9a8c\u8bc1\u2018\\0\u2019\u5b57\u7b26\u662f\u5426\u5b58\u5728\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u654f\u611f\u4fe1\u606f\uff0c\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u8d8a\u8fb9\u754c\u8bfb\u53d6\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": "MIT Kerberos 5 kadmind\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "MIT Kerberos 5 \u003c1.13.4",
      "MIT Kerberos 5 1.14.x(\u003c1.14.1)"
    ]
  },
  "referenceLink": "https://github.com/krb5/krb5/commit/df17a1224a3406f57477bcd372c61e04c0e5a5bb\r\nhttp://krbdev.mit.edu/rt/Ticket/Display.html?id=8341\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8629",
  "serverity": "\u4e2d",
  "submitTime": "2016-02-18",
  "title": "MIT Kerberos 5 kadmind\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-8629 (GCVE-0-2015-8629)

Vulnerability from cvelistv5 – Published: 2016-02-13 02:00 – Updated: 2024-08-06 08:20

Summary

The xdr_nullstring function in lib/kadm5/kadm_rpc_xdr.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13.4 and 1.14.x before 1.14.1 does not verify whether '\0' characters exist as expected, which allows remote authenticated users to obtain sensitive information or cause a denial of service (out-of-bounds read) via a crafted string.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2261 records in the last 180 days details

References

11 references

URL	Tags
http://www.debian.org/security/2016/dsa-3466	vendor-advisoryx_refsource_DEBIAN
http://www.securityfocus.com/bid/82801	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE
http://rhn.redhat.com/errata/RHSA-2016-0493.html	vendor-advisoryx_refsource_REDHAT
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8341	x_refsource_CONFIRM
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1034914	vdb-entryx_refsource_SECTRACK
http://rhn.redhat.com/errata/RHSA-2016-0532.html	vendor-advisoryx_refsource_REDHAT
https://github.com/krb5/krb5/commit/df17a1224a340…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE

Date Public

2016-01-08 00:00

Show details on NVD website

JSON

To clipboard

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}

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.

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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.
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