Vulnerability-Lookup

CNVD-2019-05897

Vulnerability from cnvd - Published: 2019-03-02

Title

rdesktop越界读取漏洞

Description

rdesktop是一个用于连接到Windows远程桌面服务的开源UNIX客户端。 rdesktop 1.8.3及更早版本中的cssp_read_tsrequest()函数存在越界读取漏洞。攻击者可利用该漏洞导致拒绝服务。

Severity

中

Patch Name

rdesktop越界读取漏洞的补丁

Patch Description

rdesktop是一个用于连接到Windows远程桌面服务的开源UNIX客户端。 rdesktop 1.8.3及更早版本中的cssp_read_tsrequest()函数存在越界读取漏洞。攻击者可利用该漏洞导致拒绝服务。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

厂商已发布漏洞修复程序，请及时关注更新： https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-8792

Impacted products

Name
Rdesktop rdesktop <=1.8.3

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8792"
    }
  },
  "description": "rdesktop\u662f\u4e00\u4e2a\u7528\u4e8e\u8fde\u63a5\u5230Windows\u8fdc\u7a0b\u684c\u9762\u670d\u52a1\u7684\u5f00\u6e90UNIX\u5ba2\u6237\u7aef\u3002\n\nrdesktop 1.8.3\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684cssp_read_tsrequest()\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-05897",
  "openTime": "2019-03-02",
  "patchDescription": "rdesktop\u662f\u4e00\u4e2a\u7528\u4e8e\u8fde\u63a5\u5230Windows\u8fdc\u7a0b\u684c\u9762\u670d\u52a1\u7684\u5f00\u6e90UNIX\u5ba2\u6237\u7aef\u3002\r\n\r\nrdesktop 1.8.3\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u7684cssp_read_tsrequest()\u51fd\u6570\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\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": "rdesktop\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Rdesktop rdesktop \u003c=1.8.3"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8792",
  "serverity": "\u4e2d",
  "submitTime": "2019-02-11",
  "title": "rdesktop\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2018-8792 (GCVE-0-2018-8792)

Vulnerability from cvelistv5 – Published: 2019-02-05 20:00 – Updated: 2024-09-17 02:17

Summary

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function cssp_read_tsrequest() that results in a Denial of Service (segfault).

Severity

No CVSS data available.

CWE

CWE-126 - Buffer Over-read

Assigner

checkpoint mitre root

References

7 references

URL	Tags
http://www.securityfocus.com/bid/106938	vdb-entryx_refsource_BID
https://github.com/rdesktop/rdesktop/commit/4dca5…	x_refsource_MISC
https://security.gentoo.org/glsa/201903-06	vendor-advisoryx_refsource_GENTOO
https://research.checkpoint.com/reverse-rdp-attac…	x_refsource_CONFIRM
https://www.debian.org/security/2019/dsa-4394	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

1 product

Vendor	Product	Version
Check Point Software Technologies Ltd.	rdesktop	Affected: All versions up to and including v1.8.3

Date Public

2019-02-05 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T07:02:26.045Z",
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        "references": [
          {
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            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106938"
          },
          {
            "tags": [
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            ],
            "url": "https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1"
          },
          {
            "name": "GLSA-201903-06",
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              "x_transferred"
            ],
            "url": "https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/"
          },
          {
            "name": "DSA-4394",
            "tags": [
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              "x_refsource_DEBIAN",
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            ],
            "url": "https://www.debian.org/security/2019/dsa-4394"
          },
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            "name": "[debian-lts-announce] 20190219 [SECURITY] [DLA 1683-1] rdesktop security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
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            "tags": [
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              "x_transferred"
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "tags": [
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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.