Vulnerability-Lookup

CNVD-2015-02696

Vulnerability from cnvd - Published: 2015-04-24

Title

chrony堆缓冲区溢出漏洞

Description

chrony是软件开发者Richard Curnow所研发的一套用于维护计算机系统时钟精度的工具。该工具包含chronyd（在系统后台运行的守护进程）和chronyc（用来监控chronyd性能和配置其参数的用户界面）程序。 chrony 1.31.1之前版本存在堆缓冲区溢出漏洞。当程序配置NTP或cmdmon访问控制权限时，远程攻击者可借助特定的地址/子网掩码（address/subnet）对利用该漏洞造成拒绝服务（chronyd崩溃），或执行任意代码。

Severity

中

Formal description

目前没有详细解决方案提供： http://chrony.tuxfamily.org/index.html

Reference

http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html

Impacted products

Name
Chrony Chrony <1.31.1

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "73955"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-1821"
    }
  },
  "description": "chrony\u662f\u8f6f\u4ef6\u5f00\u53d1\u8005Richard Curnow\u6240\u7814\u53d1\u7684\u4e00\u5957\u7528\u4e8e\u7ef4\u62a4\u8ba1\u7b97\u673a\u7cfb\u7edf\u65f6\u949f\u7cbe\u5ea6\u7684\u5de5\u5177\u3002\u8be5\u5de5\u5177\u5305\u542bchronyd\uff08\u5728\u7cfb\u7edf\u540e\u53f0\u8fd0\u884c\u7684\u5b88\u62a4\u8fdb\u7a0b\uff09\u548cchronyc\uff08\u7528\u6765\u76d1\u63a7chronyd\u6027\u80fd\u548c\u914d\u7f6e\u5176\u53c2\u6570\u7684\u7528\u6237\u754c\u9762\uff09\u7a0b\u5e8f\u3002\r\n\r\nchrony 1.31.1\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u5f53\u7a0b\u5e8f\u914d\u7f6eNTP\u6216cmdmon\u8bbf\u95ee\u63a7\u5236\u6743\u9650\u65f6\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5b9a\u7684\u5730\u5740/\u5b50\u7f51\u63a9\u7801\uff08address/subnet\uff09\u5bf9\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08chronyd\u5d29\u6e83\uff09\uff0c\u6216\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "Miroslav Lichv\u0026aacute;r of Red Hat",
  "formalWay": "\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\uff1a\r\nhttp://chrony.tuxfamily.org/index.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02696",
  "openTime": "2015-04-24",
  "products": {
    "product": "Chrony Chrony \u003c1.31.1"
  },
  "referenceLink": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html",
  "serverity": "\u4e2d",
  "submitTime": "2015-04-23",
  "title": "chrony\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2015-1821 (GCVE-0-2015-1821)

Vulnerability from cvelistv5 – Published: 2015-04-16 14:00 – Updated: 2024-08-06 04:54

Summary

Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

5 references

URL	Tags
http://www.debian.org/security/2015/dsa-3222	vendor-advisoryx_refsource_DEBIAN
http://listengine.tuxfamily.org/chrony.tuxfamily.…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/73955	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201507-01	vendor-advisoryx_refsource_GENTOO

Date Public

2015-04-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T04:54:16.293Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "DSA-3222",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2015/dsa-3222"
          },
          {
            "name": "[chrony-announce] 20150407 chrony-1.31.1 released (security)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html"
          },
          {
            "name": "73955",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/73955"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
          },
          {
            "name": "GLSA-201507-01",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201507-01"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2015-04-07T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Heap-based buffer overflow in chrony before 1.31.1 allows remote authenticated users to cause a denial of service (chronyd crash) or possibly execute arbitrary code by configuring the (1) NTP or (2) cmdmon access with a subnet size that is indivisible by four and an address with a nonzero bit in the subnet remainder."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-06-30T16:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "DSA-3222",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2015/dsa-3222"
        },
        {
          "name": "[chrony-announce] 20150407 chrony-1.31.1 released (security)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html"
        },
        {
          "name": "73955",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/73955"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
        },
        {
          "name": "GLSA-201507-01",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201507-01"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2015-1821",
    "datePublished": "2015-04-16T14:00:00.000Z",
    "dateReserved": "2015-02-17T00:00:00.000Z",
    "dateUpdated": "2024-08-06T04:54:16.293Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CNVD-2015-02696

CVE-2015-1821 (GCVE-0-2015-1821)

Tags

Sightings

Nomenclature

Related by attack behaviour