Vulnerability-Lookup

CVE-2021-20272 (GCVE-0-2021-20272)

Vulnerability from cvelistv5 – Published: 2021-03-09 13:10 – Updated: 2024-08-03 17:37

Summary

A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server 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-617

Assigner

redhat redhat root

References

4 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1936651	x_refsource_MISC
https://www.privoxy.org/announce.txt	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202107-16	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	privoxy	Affected: privoxy 3.0.32

Show details on NVD website

JSON

To clipboard

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CNVD-2021-24470

Vulnerability from cnvd - Published: 2021-04-02

Title

privoxy断言失败漏洞

Description

privoxy是一款具有高级过滤功能的Web代理。 privoxy 3.0.32之前版本存在断言失败漏洞。攻击者可通过特制CGI请求利用该漏洞导致服务器崩溃。

Severity

中

Patch Name

privoxy断言失败漏洞的补丁

Patch Description

privoxy是一款具有高级过滤功能的Web代理。 privoxy 3.0.32之前版本存在断言失败漏洞。攻击者可通过特制CGI请求利用该漏洞导致服务器崩溃。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://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=2256d7b4d67

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-20272

Impacted products

Name
Privoxy Privoxy <3.0.32

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2021-20272",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20272"
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  },
  "description": "privoxy\u662f\u4e00\u6b3e\u5177\u6709\u9ad8\u7ea7\u8fc7\u6ee4\u529f\u80fd\u7684Web\u4ee3\u7406\u3002\n\nprivoxy 3.0.32\u4e4b\u524d\u7248\u672c\u5b58\u5728\u65ad\u8a00\u5931\u8d25\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236CGI\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u670d\u52a1\u5668\u5d29\u6e83\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-24470",
  "openTime": "2021-04-02",
  "patchDescription": "privoxy\u662f\u4e00\u6b3e\u5177\u6709\u9ad8\u7ea7\u8fc7\u6ee4\u529f\u80fd\u7684Web\u4ee3\u7406\u3002\r\n\r\nprivoxy 3.0.32\u4e4b\u524d\u7248\u672c\u5b58\u5728\u65ad\u8a00\u5931\u8d25\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236CGI\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u670d\u52a1\u5668\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",
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  "products": {
    "product": "Privoxy Privoxy \u003c3.0.32"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-20272",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-10",
  "title": "privoxy\u65ad\u8a00\u5931\u8d25\u6f0f\u6d1e"
}

FKIE_CVE-2021-20272

Vulnerability from fkie_nvd - Published: 2021-03-09 14:15 - Updated: 2026-06-17 03:33

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.

References

URL	Tags
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=1936651	Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://security.gentoo.org/glsa/202107-16	Third Party Advisory
secalert@redhat.com	https://www.privoxy.org/announce.txt	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=1936651	Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202107-16	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.privoxy.org/announce.txt	Vendor Advisory

Impacted products

	Vendor	Product	Version
	privoxy	privoxy	*
	debian	debian_linux	9.0

JSON

To clipboard

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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo en privoxy versiones anteriores a 3.0.32.\u0026#xa0;Se podr\u00eda desencadenar un fallo de aserci\u00f3n con una petici\u00f3n CGI dise\u00f1ada conllevando a un bloqueo del servidor"
    }
  ],
  "id": "CVE-2021-20272",
  "lastModified": "2026-06-17T03:33:35.040",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-03-09T14:15:12.413",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/202107-16"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.privoxy.org/announce.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/202107-16"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.privoxy.org/announce.txt"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-F82F-54FM-GRWM

Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-05-24 17:43

Details

A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2021-20272"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-09T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.",
  "id": "GHSA-f82f-54fm-grwm",
  "modified": "2022-05-24T17:43:53Z",
  "published": "2022-05-24T17:43:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20272"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-16"
    },
    {
      "type": "WEB",
      "url": "https://www.privoxy.org/announce.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GSD-2021-20272

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.

Aliases

CVE-2021-20272

Aliases

CVE-2021-20272

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2021-20272",
    "description": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.",
    "id": "GSD-2021-20272",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-20272.html",
      "https://ubuntu.com/security/CVE-2021-20272",
      "https://security.archlinux.org/CVE-2021-20272"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-20272"
      ],
      "details": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.",
      "id": "GSD-2021-20272",
      "modified": "2023-12-13T01:23:12.760770Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-20272",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "privoxy",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "privoxy 3.0.32"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-617"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651"
          },
          {
            "name": "https://www.privoxy.org/announce.txt",
            "refsource": "MISC",
            "url": "https://www.privoxy.org/announce.txt"
          },
          {
            "name": "[debian-lts-announce] 20210309 [SECURITY] [DLA 2587-1] privoxy security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html"
          },
          {
            "name": "GLSA-202107-16",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202107-16"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:privoxy:privoxy:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.0.32",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-20272"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
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              "value": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-617"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1936651"
            },
            {
              "name": "https://www.privoxy.org/announce.txt",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.privoxy.org/announce.txt"
            },
            {
              "name": "[debian-lts-announce] 20210309 [SECURITY] [DLA 2587-1] privoxy security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00009.html"
            },
            {
              "name": "GLSA-202107-16",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202107-16"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "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": "2021-12-07T20:02Z",
      "publishedDate": "2021-03-09T14:15Z"
    }
  }
}

OPENSUSE-SU-2021:0443-1

Vulnerability from csaf_opensuse - Published: 2021-03-18 13:06 - Updated: 2021-03-18 13:06

Summary

Security update for privoxy

Severity

Moderate

Scope

5 vulnerabilities in this advisory, including CVE-2021-20272.

CVE-2021-20272

7.5 (High)


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

Recommended: 2 products

Open the full advisory

OPENSUSE-SU-2021:0460-1

Vulnerability from csaf_opensuse - Published: 2021-03-21 23:09 - Updated: 2021-03-21 23:09

Summary

Security update for privoxy

Severity

Moderate

Scope

5 vulnerabilities in this advisory, including CVE-2021-20272.

CVE-2021-20272

7.5 (High)


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

Recommended: 5 products

Open the full advisory

OPENSUSE-SU-2024:11193-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

privoxy-3.0.32-2.3 on GA media

Severity

Moderate

Scope

7 vulnerabilities in this advisory, including CVE-2021-20272.

CVE-2021-20272

7.5 (High)


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

Recommended: 8 products

Open the full advisory

ubuntu-cve-2021-20272

Vulnerability from osv_ubuntu

Published

2021-03-09 14:15

Modified

2025-09-08 16:46

Summary

Details

A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.

Severity

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-20272	REPORT
	https://www.openwall.com/lists/oss-security/2021/…	REPORT
	https://www.privoxy.org/gitweb/?p=privoxy.git;a=c…	REPORT
	https://ubuntu.com/security/notices/USN-4886-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2021-20272	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "privoxy",
            "binary_version": "3.0.21-7+deb8u1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "privoxy",
        "purl": "pkg:deb/ubuntu/privoxy@3.0.21-7+deb8u1ubuntu0.1~esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.21-7+deb8u1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.21-1",
        "3.0.21-2",
        "3.0.21-7+deb8u1build0.14.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "privoxy",
            "binary_version": "3.0.24-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "privoxy",
        "purl": "pkg:deb/ubuntu/privoxy@3.0.24-1ubuntu0.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.24-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.23-3",
        "3.0.23-4",
        "3.0.23-5",
        "3.0.24-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "privoxy",
            "binary_version": "3.0.26-5ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "privoxy",
        "purl": "pkg:deb/ubuntu/privoxy@3.0.26-5ubuntu0.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.26-5ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.26-3",
        "3.0.26-4",
        "3.0.26-5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "privoxy",
            "binary_version": "3.0.28-2ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "privoxy",
        "purl": "pkg:deb/ubuntu/privoxy@3.0.28-2ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.0.28-2ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.28-2"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in privoxy before 3.0.32. An assertion failure could be triggered with a crafted CGI request leading to server crash.",
  "id": "UBUNTU-CVE-2021-20272",
  "modified": "2025-09-08T16:46:55Z",
  "published": "2021-03-09T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20272"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2021/02/28/1"
    },
    {
      "type": "REPORT",
      "url": "https://www.privoxy.org/gitweb/?p=privoxy.git;a=commit;h=2256d7b4d67dd9c364386877d5af59943433458b"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4886-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-20272"
    }
  ],
  "related": [
    "USN-4886-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-20272"
  ]
}

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.

Action not permitted

CVE-2021-20272 (GCVE-0-2021-20272)

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour