Vulnerability-Lookup

CNVD-2015-02543

Vulnerability from cnvd - Published: 2015-04-20

Title

Chrony内存破坏漏洞

Description

Chrony是用于计算机同步时间的工具，实现了NTP协议，并且可以同时作为客户端和服务器端程序，特别适合无网络连接环境中保持计算机时间准确性。 Chrony在cmdmon回复槽中存在未初始化指针。经过身份验证的攻击者可以用其他命令分配或解除分配内存，强制分配新回复槽，使chronyd对无效内存写回复。

Severity

中

Patch Name

Chrony内存破坏漏洞的补丁

Patch Description

Chrony是用于计算机同步时间的工具，实现了NTP协议，并且可以同时作为客户端和服务器端程序，特别适合无网络连接环境中保持计算机时间准确性。Chrony在cmdmon回复槽中存在未初始化指针。经过身份验证的攻击者可以用其他命令分配或解除分配内存，强制分配新回复槽，使chronyd对无效内存写回复。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这个安全问题，请到厂商的主页下载： http://chrony.tuxfamily.org/News.html http://download.tuxfamily.org/chrony/chrony-1.31.1.tar.gz

Reference

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1822

Impacted products

Name
Chrony Chrony <1.31.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-1822"
    }
  },
  "description": "Chrony\u662f\u7528\u4e8e\u8ba1\u7b97\u673a\u540c\u6b65\u65f6\u95f4\u7684\u5de5\u5177\uff0c\u5b9e\u73b0\u4e86NTP\u534f\u8bae\uff0c\u5e76\u4e14\u53ef\u4ee5\u540c\u65f6\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\uff0c\u7279\u522b\u9002\u5408\u65e0\u7f51\u7edc\u8fde\u63a5\u73af\u5883\u4e2d\u4fdd\u6301\u8ba1\u7b97\u673a\u65f6\u95f4\u51c6\u786e\u6027\u3002\r\n\r\nChrony\u5728cmdmon\u56de\u590d\u69fd\u4e2d\u5b58\u5728\u672a\u521d\u59cb\u5316\u6307\u9488\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u4ee5\u7528\u5176\u4ed6\u547d\u4ee4\u5206\u914d\u6216\u89e3\u9664\u5206\u914d\u5185\u5b58\uff0c\u5f3a\u5236\u5206\u914d\u65b0\u56de\u590d\u69fd\uff0c\u4f7fchronyd\u5bf9\u65e0\u6548\u5185\u5b58\u5199\u56de\u590d\u3002",
  "discovererName": "Miroslav Lichv\u00e1r",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttp://chrony.tuxfamily.org/News.html\r\nhttp://download.tuxfamily.org/chrony/chrony-1.31.1.tar.gz",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-02543",
  "openTime": "2015-04-20",
  "patchDescription": "Chrony\u662f\u7528\u4e8e\u8ba1\u7b97\u673a\u540c\u6b65\u65f6\u95f4\u7684\u5de5\u5177\uff0c\u5b9e\u73b0\u4e86NTP\u534f\u8bae\uff0c\u5e76\u4e14\u53ef\u4ee5\u540c\u65f6\u4f5c\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\uff0c\u7279\u522b\u9002\u5408\u65e0\u7f51\u7edc\u8fde\u63a5\u73af\u5883\u4e2d\u4fdd\u6301\u8ba1\u7b97\u673a\u65f6\u95f4\u51c6\u786e\u6027\u3002Chrony\u5728cmdmon\u56de\u590d\u69fd\u4e2d\u5b58\u5728\u672a\u521d\u59cb\u5316\u6307\u9488\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u4ee5\u7528\u5176\u4ed6\u547d\u4ee4\u5206\u914d\u6216\u89e3\u9664\u5206\u914d\u5185\u5b58\uff0c\u5f3a\u5236\u5206\u914d\u65b0\u56de\u590d\u69fd\uff0c\u4f7fchronyd\u5bf9\u65e0\u6548\u5185\u5b58\u5199\u56de\u590d\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": "Chrony\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Chrony Chrony \u003c1.31.1"
  },
  "referenceLink": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-1822",
  "serverity": "\u4e2d",
  "submitTime": "2015-04-15",
  "title": "Chrony\u5185\u5b58\u7834\u574f\u6f0f\u6d1e"
}

CVE-2015-1822 (GCVE-0-2015-1822)

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

Summary

chrony before 1.31.1 does not initialize the last "next" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests.

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.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201507-01	vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/73956	vdb-entryx_refsource_BID

Date Public

2015-04-07 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T04:54:16.319Z",
          "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"
          },
          {
            "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"
          },
          {
            "name": "73956",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/73956"
          }
        ],
        "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": "chrony before 1.31.1 does not initialize the last \"next\" pointer when saving unacknowledged replies to command requests, which allows remote authenticated users to cause a denial of service (uninitialized pointer dereference and daemon crash) or possibly execute arbitrary code via a large number of command requests."
        }
      ],
      "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"
        },
        {
          "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"
        },
        {
          "name": "73956",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/73956"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2015-1822",
    "datePublished": "2015-04-16T14:00:00.000Z",
    "dateReserved": "2015-02-17T00:00:00.000Z",
    "dateUpdated": "2024-08-06T04:54:16.319Z",
    "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.
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Action not permitted

CNVD-2015-02543

CVE-2015-1822 (GCVE-0-2015-1822)

Tags

Sightings

Nomenclature

Related by attack behaviour