Vulnerability-Lookup

CNVD-2019-05100

Vulnerability from cnvd - Published: 2019-02-22

Title

LibVNC内存错误引用漏洞（CNVD-2019-05100）

Description

LibVNC是一款用于实现VNC服务器和客户端功能的跨平台C库。 LibVNC commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b之前版本中的文件传输扩展的服务器代码存在内存错误引用漏洞。远程攻击者可利用该漏洞执行任意代码。

Severity

中

Patch Name

LibVNC内存错误引用漏洞（CNVD-2019-05100）的补丁

Patch Description

LibVNC是一款用于实现VNC服务器和客户端功能的跨平台C库。 LibVNC commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b之前版本中的文件传输扩展的服务器代码存在内存错误引用漏洞。远程攻击者可利用该漏洞执行任意代码。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/LibVNC/libvncserver

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-6307

Impacted products

Name
LibVNC LibVNC <commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-6307"
    }
  },
  "description": "LibVNC\u662f\u4e00\u6b3e\u7528\u4e8e\u5b9e\u73b0VNC\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u529f\u80fd\u7684\u8de8\u5e73\u53f0C\u5e93\u3002\n\nLibVNC commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u6587\u4ef6\u4f20\u8f93\u6269\u5c55\u7684\u670d\u52a1\u5668\u4ee3\u7801\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/LibVNC/libvncserver",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05100",
  "openTime": "2019-02-22",
  "patchDescription": "LibVNC\u662f\u4e00\u6b3e\u7528\u4e8e\u5b9e\u73b0VNC\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u529f\u80fd\u7684\u8de8\u5e73\u53f0C\u5e93\u3002\r\n\r\nLibVNC commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u6587\u4ef6\u4f20\u8f93\u6269\u5c55\u7684\u670d\u52a1\u5668\u4ee3\u7801\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "LibVNC\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2019-05100\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "LibVNC LibVNC \u003ccommit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-6307",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-20",
  "title": "LibVNC\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2019-05100\uff09"
}

CVE-2018-6307 (GCVE-0-2018-6307)

Vulnerability from cvelistv5 – Published: 2018-12-19 16:00 – Updated: 2024-08-05 06:01

Summary

LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution.

Severity

No CVSS data available.

CWE

Heap Use-After-Free

Assigner

Kaspersky mitre root Scorecard

References

5 references

URL	Tags
https://ics-cert.kaspersky.com/advisories/klcert-…	x_refsource_MISC
https://www.debian.org/security/2019/dsa-4383	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3877-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
n/a	LibVNC	Affected: commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b

Date Public

2018-12-19 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:01:48.679Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/"
          },
          {
            "name": "DSA-4383",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4383"
          },
          {
            "name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
          },
          {
            "name": "USN-3877-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3877-1/"
          },
          {
            "name": "[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "LibVNC",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b"
            }
          ]
        }
      ],
      "datePublic": "2018-12-19T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution."
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      ],
      "providerMetadata": {
        "dateUpdated": "2019-10-31T00:06:57.000Z",
        "orgId": "e45d732a-8f6b-4b6b-be76-7420f6a2b988",
        "shortName": "Kaspersky"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/"
        },
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        },
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          "name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update",
          "tags": [
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html"
        },
        {
          "name": "USN-3877-1",
          "tags": [
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            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3877-1/"
        },
        {
          "name": "[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vulnerability@kaspersky.com",
          "ID": "CVE-2018-6307",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "LibVNC",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b"
                          }
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                "vendor_name": "n/a"
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        "data_version": "4.0",
        "description": {
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              "refsource": "MISC",
              "url": "https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-026-libvnc-heap-use-after-free/"
            },
            {
              "name": "DSA-4383",
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              "url": "https://www.debian.org/security/2019/dsa-4383"
            },
            {
              "name": "[debian-lts-announce] 20181227 [SECURITY] [DLA 1617-1] libvncserver security update",
              "refsource": "MLIST",
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            },
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              "url": "https://usn.ubuntu.com/3877-1/"
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  "cveMetadata": {
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    "datePublished": "2018-12-19T16:00:00.000Z",
    "dateReserved": "2018-01-25T00:00:00.000Z",
    "dateUpdated": "2024-08-05T06:01:48.679Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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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CNVD-2019-05100

CVE-2018-6307 (GCVE-0-2018-6307)

Tags

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Nomenclature

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