Vulnerability-Lookup

CNVD-2019-00650

Vulnerability from cnvd - Published: 2019-01-09

Title

FreeRDP越界写入漏洞

Description

FreeRDP是FreeRDP团队开发的一个免费、开源的关于远程桌面协议（RDP）的实现。 FreeRDP2.0.0-rc4之前版本中的‘nsc_rle_decode()’函数存在越界写入漏洞，远程攻击者可利用该漏洞造成拒绝服务（内存损坏）并可能执行代码。

Severity

高

Patch Name

FreeRDP越界写入漏洞的补丁

Patch Description

FreeRDP是FreeRDP团队开发的一个免费、开源的关于远程桌面协议（RDP）的实现。 FreeRDP2.0.0-rc4之前版本中的‘nsc_rle_decode()’函数存在越界写入漏洞，远程攻击者可利用该漏洞造成拒绝服务（内存损坏）并可能执行代码。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/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-8788

Impacted products

Name
FreeRDP FreeRDP <2.0.0-rc4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8788"
    }
  },
  "description": "FreeRDP\u662fFreeRDP\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u4e2a\u514d\u8d39\u3001\u5f00\u6e90\u7684\u5173\u4e8e\u8fdc\u7a0b\u684c\u9762\u534f\u8bae\uff08RDP\uff09\u7684\u5b9e\u73b0\u3002\n\nFreeRDP2.0.0-rc4\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018nsc_rle_decode()\u2019\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u635f\u574f\uff09\u5e76\u53ef\u80fd\u6267\u884c\u4ee3\u7801\u3002",
  "discovererName": "akallabeth",
  "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/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-00650",
  "openTime": "2019-01-09",
  "patchDescription": "FreeRDP\u662fFreeRDP\u56e2\u961f\u5f00\u53d1\u7684\u4e00\u4e2a\u514d\u8d39\u3001\u5f00\u6e90\u7684\u5173\u4e8e\u8fdc\u7a0b\u684c\u9762\u534f\u8bae\uff08RDP\uff09\u7684\u5b9e\u73b0\u3002\r\n\r\nFreeRDP2.0.0-rc4\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018nsc_rle_decode()\u2019\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u635f\u574f\uff09\u5e76\u53ef\u80fd\u6267\u884c\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": "FreeRDP\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "FreeRDP FreeRDP \u003c2.0.0-rc4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8788",
  "serverity": "\u9ad8",
  "submitTime": "2018-11-30",
  "title": "FreeRDP\u8d8a\u754c\u5199\u5165\u6f0f\u6d1e"
}

CVE-2018-8788 (GCVE-0-2018-8788)

Vulnerability from cvelistv5 – Published: 2018-11-29 17:00 – Updated: 2024-09-16 17:28

Summary

FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption and possibly even a remote code execution.

Severity

No CVSS data available.

CWE

CWE-787 - Out-of-bounds Write

Assigner

checkpoint mitre root

References

7 references

URL	Tags
http://www.securityfocus.com/bid/106938	vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3845-1/	vendor-advisoryx_refsource_UBUNTU
https://research.checkpoint.com/reverse-rdp-attac…	x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/commit/d1112c2…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:0697	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3845-2/	vendor-advisoryx_refsource_UBUNTU

Impacted products

1 product

Vendor	Product	Version
Check Point Software Technologies Ltd.	FreeRDP	Affected: All versions prior to 2.0.0-rc4

Date Public

2018-10-22 00:00

Show details on NVD website

JSON

To clipboard

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          },
          {
            "name": "[debian-lts-announce] 20190209 [SECURITY] [DLA 1666-1] freerdp security update",
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    ],
    "cna": {
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        },
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              "refsource": "MLIST",
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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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.