gsd-2020-24606
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
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.
Aliases
Aliases
CVE-2020-24606


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-24606",
    "description": "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.",
    "id": "GSD-2020-24606",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-24606.html",
      "https://www.debian.org/security/2020/dsa-4751",
      "https://access.redhat.com/errata/RHSA-2020:4743",
      "https://access.redhat.com/errata/RHSA-2020:4082",
      "https://ubuntu.com/security/CVE-2020-24606",
      "https://advisories.mageia.org/CVE-2020-24606.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-24606.html",
      "https://linux.oracle.com/cve/CVE-2020-24606.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-24606"
      ],
      "details": "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.",
      "id": "GSD-2020-24606",
      "modified": "2023-12-13T01:22:12.020103Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-24606",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
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      "data_version": "4.0",
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            "value": "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."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:C/UI:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
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              {
                "lang": "eng",
                "value": "n/a"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg",
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          },
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          },
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          },
          {
            "name": "FEDORA-2020-63f3bd656e",
            "refsource": "FEDORA",
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          },
          {
            "name": "openSUSE-SU-2020:1346",
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          {
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            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/"
          },
          {
            "name": "USN-4551-1",
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          {
            "name": "[debian-lts-announce] 20201002 [SECURITY] [DLA 2394-1] squid3 security update",
            "refsource": "MLIST",
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          {
            "name": "https://security.netapp.com/advisory/ntap-20210219-0007/",
            "refsource": "CONFIRM",
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            "name": "https://security.netapp.com/advisory/ntap-20210226-0007/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20210226-0007/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20210226-0006/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20210226-0006/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.13",
                "versionStartIncluding": "3.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.0.4",
                "versionStartIncluding": "5.0.1",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
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              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
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              },
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                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*",
                "cpe_name": [],
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              }
            ],
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      },
      "cve": {
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          "ID": "CVE-2020-24606"
        },
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        "data_version": "4.0",
        "description": {
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            }
          ]
        },
        "problemtype": {
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                {
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                }
              ]
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        },
        "references": {
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            {
              "name": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch",
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              ],
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            },
            {
              "name": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg",
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              ],
              "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg"
            },
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            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210226-0006/",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
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              "url": "https://security.netapp.com/advisory/ntap-20210226-0006/"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210226-0007/",
              "refsource": "CONFIRM",
              "tags": [
                "Broken Link"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20210226-0007/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-07-21T11:39Z",
      "publishedDate": "2020-08-24T18:15Z"
    }
  }
}


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