cnvd - cnvd-2016-12880

cnvd-2016-12880

Vulnerability from cnvd

Title: Samba远程拒绝服务漏洞

Description:

Samba是Samba团队开发的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。

Samba中存在远程拒绝服务漏洞。攻击者可利用该漏洞造成winbindd崩溃，导致拒绝服务。

Severity: 中

Patch Name: Samba远程拒绝服务漏洞的补丁

Patch Description:

Samba中存在远程拒绝服务漏洞。攻击者可利用该漏洞造成winbindd崩溃，导致拒绝服务。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： https://www.samba.org/samba/security/CVE-2016-2126.html

Reference: http://www.securityfocus.com/bid/94994

Impacted products

Name
['Samba Samba <4.5.3', 'Samba Samba <4.4.8', 'Samba Samba <4.3.13']

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "94994"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-2126"
    }
  },
  "description": "Samba\u662fSamba\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u53ef\u4f7fUNIX\u7cfb\u5217\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e0e\u5fae\u8f6fWindows\u64cd\u4f5c\u7cfb\u7edf\u7684SMB/CIFS\u7f51\u7edc\u534f\u8bae\u505a\u8fde\u7ed3\u7684\u81ea\u7531\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301\u5171\u4eab\u6253\u5370\u673a\u3001\u4e92\u76f8\u4f20\u8f93\u8d44\u6599\u6587\u4ef6\u7b49\u3002\r\n\r\nSamba\u4e2d\u5b58\u5728\u8fdc\u7a0b\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210winbindd\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Volker Lendecke and Stefan Metzmacher.",
  "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\nhttps://www.samba.org/samba/security/CVE-2016-2126.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-12880",
  "openTime": "2016-12-23",
  "patchDescription": "Samba\u662fSamba\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u5957\u53ef\u4f7fUNIX\u7cfb\u5217\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e0e\u5fae\u8f6fWindows\u64cd\u4f5c\u7cfb\u7edf\u7684SMB/CIFS\u7f51\u7edc\u534f\u8bae\u505a\u8fde\u7ed3\u7684\u81ea\u7531\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301\u5171\u4eab\u6253\u5370\u673a\u3001\u4e92\u76f8\u4f20\u8f93\u8d44\u6599\u6587\u4ef6\u7b49\u3002\r\n\r\nSamba\u4e2d\u5b58\u5728\u8fdc\u7a0b\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210winbindd\u5d29\u6e83\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "Samba\u8fdc\u7a0b\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Samba Samba \u003c4.5.3",
      "Samba Samba \u003c4.4.8",
      "Samba Samba \u003c4.3.13"
    ]
  },
  "referenceLink": "http://www.securityfocus.com/bid/94994",
  "serverity": "\u4e2d",
  "submitTime": "2016-12-23",
  "title": "Samba\u8fdc\u7a0b\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2016-2126 (GCVE-0-2016-2126)

Vulnerability from cvelistv5

Published

2017-05-11 14:01

Modified

2024-08-05 23:17

Severity ?

CWE

Summary

Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.

References

▼	URL	Tags
	https://www.samba.org/samba/security/CVE-2016-2126.html	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1037495	vdb-entry, x_refsource_SECTRACK
	http://rhn.redhat.com/errata/RHSA-2017-0495.html	vendor-advisory, x_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0494.html	vendor-advisory, x_refsource_REDHAT
	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2017:1265	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/94994	vdb-entry, x_refsource_BID
	http://rhn.redhat.com/errata/RHSA-2017-0744.html	vendor-advisory, x_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2017-0662.html	vendor-advisory, x_refsource_REDHAT

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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