Vulnerability-Lookup

CNVD-2020-48582

Vulnerability from cnvd - Published: 2020-08-27

Title

Squid拒绝服务漏洞（CNVD-2020-48582）

Description

Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 4.13之前版本，5.x系列中5.0.4之前版本存在安全漏洞，攻击者可利用该漏洞导致拒绝服务攻击。

Severity

高

Patch Name

Squid拒绝服务漏洞（CNVD-2020-48582）的补丁

Patch Description

Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。 Squid 4.13之前版本，5.x系列中5.0.4之前版本存在安全漏洞，攻击者可利用该漏洞导致拒绝服务攻击。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

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-24606

Impacted products

Name
['Squid Squid 5.*，<5.0.4', 'Squid Squid <4.13']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-24606",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-24606"
    }
  },
  "description": "Squid\u662f\u4e00\u5957\u4ee3\u7406\u670d\u52a1\u5668\u548cWeb\u7f13\u5b58\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u7f13\u5b58\u4e07\u7ef4\u7f51\u3001\u8fc7\u6ee4\u6d41\u91cf\u3001\u4ee3\u7406\u4e0a\u7f51\u7b49\u529f\u80fd\u3002\n\nSquid 4.13\u4e4b\u524d\u7248\u672c\uff0c5.x\u7cfb\u5217\u4e2d5.0.4\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-48582",
  "openTime": "2020-08-27",
  "patchDescription": "Squid\u662f\u4e00\u5957\u4ee3\u7406\u670d\u52a1\u5668\u548cWeb\u7f13\u5b58\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u63d0\u4f9b\u7f13\u5b58\u4e07\u7ef4\u7f51\u3001\u8fc7\u6ee4\u6d41\u91cf\u3001\u4ee3\u7406\u4e0a\u7f51\u7b49\u529f\u80fd\u3002\r\n\r\nSquid 4.13\u4e4b\u524d\u7248\u672c\uff0c5.x\u7cfb\u5217\u4e2d5.0.4\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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": "Squid\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-48582\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Squid Squid 5.*\uff0c\u003c5.0.4",
      "Squid Squid \u003c4.13"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-24606",
  "serverity": "\u9ad8",
  "submitTime": "2020-08-25",
  "title": "Squid\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-48582\uff09"
}

CVE-2020-24606 (GCVE-0-2020-24606)

Vulnerability from cvelistv5 – Published: 2020-08-24 17:06 – Updated: 2024-08-04 15:19

Summary

Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.

Severity

8.6 (High)


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

CWE

Assigner

mitre mitre root

References

14 references

URL	Tags
https://github.com/squid-cache/squid/security/adv…	x_refsource_MISC
http://www.squid-cache.org/Versions/v4/changesets…	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4751	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4477-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/4551-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021021…	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2021022…	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2021022…	x_refsource_CONFIRM

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:19:08.544Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
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            "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg"
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            ],
            "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch"
          },
          {
            "name": "DSA-4751",
            "tags": [
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            "url": "https://www.debian.org/security/2020/dsa-4751"
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            "name": "USN-4477-1",
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              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/"
          },
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            "tags": [
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/"
          },
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            "name": "openSUSE-SU-2020:1346",
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              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html"
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            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/"
          },
          {
            "name": "USN-4551-1",
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              "x_refsource_UBUNTU",
              "x_transferred"
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            "url": "https://usn.ubuntu.com/4551-1/"
          },
          {
            "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
            "tags": [
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          },
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            ],
            "url": "https://security.netapp.com/advisory/ntap-20210219-0007/"
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            "url": "https://security.netapp.com/advisory/ntap-20210226-0007/"
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            "url": "https://security.netapp.com/advisory/ntap-20210226-0006/"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "n/a",
          "vendor": "n/a",
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        }
      ],
      "metrics": [
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            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
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        },
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          ],
          "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch"
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          ],
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        },
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          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4477-1/"
        },
        {
          "name": "FEDORA-2020-73af8655eb",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/"
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        },
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          "tags": [
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          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html"
        },
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          "tags": [
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            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html"
        },
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          "name": "FEDORA-2020-6c58bff862",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/"
        },
        {
          "name": "USN-4551-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4551-1/"
        },
        {
          "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210219-0007/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210226-0007/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210226-0006/"
        }
      ],
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          "ID": "CVE-2020-24606",
          "STATE": "PUBLIC"
        },
        "affects": {
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                      "product_name": "n/a",
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            }
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        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "confidentialityImpact": "NONE",
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            "userInteraction": "NONE",
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            },
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              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html"
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              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/"
            },
            {
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              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4551-1/"
            },
            {
              "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210219-0007/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210219-0007/"
            },
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              "url": "https://security.netapp.com/advisory/ntap-20210226-0007/"
            },
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              "url": "https://security.netapp.com/advisory/ntap-20210226-0006/"
            }
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-24606",
    "datePublished": "2020-08-24T17:06:24.000Z",
    "dateReserved": "2020-08-24T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:19:08.544Z",
    "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.
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.

Action not permitted

CNVD-2020-48582

CVE-2020-24606 (GCVE-0-2020-24606)

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