Vulnerability-Lookup

CNVD-2020-41713

Vulnerability from cnvd - Published: 2020-07-22

Title

Libreswan缓冲区溢出漏洞

Description

Libreswan是一个类似于Openswan的IPsec实现，它主要用于保证数据传输中的安全性、完整性问题。 libreswan 3.27版本至3.31版本中的pluto守护进程存在缓冲区溢出漏洞。攻击者可通过发送特制的IKEv1 Informational Exchange数据包利用该漏洞使libreswan崩溃。

Severity

中

Patch Name

Libreswan缓冲区溢出漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-1763

Impacted products

Name
Libreswan Libreswan >=3.27，<=3.31

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-1763"
    }
  },
  "description": "Libreswan\u662f\u4e00\u4e2a\u7c7b\u4f3c\u4e8eOpenswan\u7684IPsec\u5b9e\u73b0\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u95ee\u9898\u3002\n\nlibreswan 3.27\u7248\u672c\u81f33.31\u7248\u672c\u4e2d\u7684pluto\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IKEv1 Informational Exchange\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7flibreswan\u5d29\u6e83\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-41713",
  "openTime": "2020-07-22",
  "patchDescription": "Libreswan\u662f\u4e00\u4e2a\u7c7b\u4f3c\u4e8eOpenswan\u7684IPsec\u5b9e\u73b0\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u4e2d\u7684\u5b89\u5168\u6027\u3001\u5b8c\u6574\u6027\u95ee\u9898\u3002\r\n\r\nlibreswan 3.27\u7248\u672c\u81f33.31\u7248\u672c\u4e2d\u7684pluto\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236\u7684IKEv1 Informational Exchange\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7flibreswan\u5d29\u6e83\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": "Libreswan\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e \u7684\u8865\u4e01",
  "products": {
    "product": "Libreswan Libreswan \u003e=3.27\uff0c\u003c=3.31"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-1763",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-13",
  "title": "Libreswan\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-1763 (GCVE-0-2020-1763)

Vulnerability from cvelistv5 – Published: 2020-05-12 13:41 – Updated: 2024-08-04 06:46

Summary

An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-125

Assigner

redhat redhat root

References

8 references

URL	Tags
https://libreswan.org/security/CVE-2020-1763/CVE-…	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1813329	x_refsource_MISC
https://github.com/libreswan/libreswan/commit/471…	x_refsource_CONFIRM
https://www.debian.org/security/2020/dsa-4684	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202007-21	vendor-advisoryx_refsource_GENTOO
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
the libreswan Project	libreswan	Affected: from versions 3.27 till 3.31

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-04T06:46:30.902Z",
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            ],
            "url": "https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt"
          },
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            ],
            "url": "https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8"
          },
          {
            "name": "DSA-4684",
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            "name": "GLSA-202007-21",
            "tags": [
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        ],
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    ],
    "cna": {
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            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
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            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
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          ],
          "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04"
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      ],
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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.

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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.

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CNVD-2020-41713

CVE-2020-1763 (GCVE-0-2020-1763)

Tags

Sightings

Nomenclature

Related by attack behaviour