CVE-2002-0687: Zope Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-vwrc-g9q6-f675
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CWE-400
Published
Advisory Summary

CVE-2002-0687 is a MODERATE denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Zope libraries in the PyPI ecosystem. The issue involves zope server vulnerable to dos via header injection. Remediation is available by upgrading affected packages to version 2.4.4b2, 2.5.1b2.

CVE-2002-0687 at a Glance

CVE Identifier CVE-2002-0687
GHSA Identifier GHSA-vwrc-g9q6-f675
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Zope
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2002-0687

To remediate this vulnerability, upgrade all affected Zope dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

zope fixed: 2.4.4b2 
pip install zope>=2.4.4b2
zope fixed: 2.5.1b2 
pip install zope>=2.5.1b2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show zope

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2002-0687, inspect your installed packages using pip:

pip show zope

Analyze the terminal output to locate any version of Zope in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.4.4b2), your application is affected.

Note: The pip show zope command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Zope, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Zope is a Web application server for Linux. Zope versions 2.0 through 2.5.1 b1 are vulnerable to a denial of service attack, caused by a vulnerability that occurs when using the "through the Web code" capability. A remote attacker could inject malicious headers into a response to cause the vulnerable system to crash.

CVE-2002-0687 Affected Zope Versions

2 component(s)
Fixed Versions:
2.4.4b22.5.1b2
Product / Package Ecosystem Affected Versions Fixed Version
zope
pypi/zope
PyPI
≥ 2.0.0
< 2.4.4b2
2.4.4b2
zope
pypi/zope
PyPI
≥ 2.5.0
< 2.5.1b2
2.5.1b2

References

NVD — CVE-2002-0687 NVD
https://nvd.nist.gov/vuln/detail/CVE-2002-0687
marc.info/ WEB
https://marc.info/?l=zope-announce&m=101890177815066&w=2
marc.info/ WEB
https://marc.info/?l=zope-announce&m=101897461507941&w=2
marc.info/ WEB
https://marc.info/?l=zope-announce&m=101897462107967&w=2
Zope Security Information SECURITY
https://web.archive.org/web/20020822024423/http://www.iss.net/security_center/static/9621.php
Zope Security Information SECURITY
https://web.archive.org/web/20021018100409/http://online.securityfocus.com/bid/5813
www.redhat.com/support/errata/rhsa... WEB
http://www.redhat.com/support/errata/RHSA-2002-060.html
Zope Security Information SECURITY
http://www.zope.org/Products/Zope/Hotfix_2002-04-15/security_alert

Frequently Asked Questions

What is CVE-2002-0687?
CVE-2002-0687 is a security vulnerability in Zope involving Zope Server vulnerable to DoS via header injection under CWE-400: Uncontrolled Resource Consumption.
Which Zope versions are affected?
Affected versions include releases prior to 2.4.4b2, 2.5.1b2 across affected packages: zope.
What version fixes CVE-2002-0687?
Upgrading to 2.4.4b2, 2.5.1b2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is zope affected?
Yes, zope is affected in releases prior to 2.4.4b2, 2.5.1b2. Upgrade your dependency to 2.4.4b2, 2.5.1b2 or later.
What CWE is associated with CVE-2002-0687?
CVE-2002-0687 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for CVE-2002-0687?
Run the dependency tree command: 'pip show zope'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vwrc-g9q6-f675",
  "modified" : "2024-02-12T18:04:43Z",
  "published" : "2022-04-30T18:19:43Z",
  "aliases" : [ "CVE-2002-0687" ],
  "summary" : "Zope Server vulnerable to DoS via header injection",
  "details" : "Zope is a Web application server for Linux. Zope versions 2.0 through 2.5.1 b1 are vulnerable to a denial of service attack, caused by a vulnerability that occurs when using the \"through the Web code\" capability. A remote attacker could inject malicious headers into a response to cause the vulnerable system to crash.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "zope"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.4.4b2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "zope"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.5.0"
      }, {
        "fixed" : "2.5.1b2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2002-0687"
  }, {
    "type" : "WEB",
    "url" : "https://marc.info/?l=zope-announce&m=101890177815066&w=2"
  }, {
    "type" : "WEB",
    "url" : "https://marc.info/?l=zope-announce&m=101897461507941&w=2"
  }, {
    "type" : "WEB",
    "url" : "https://marc.info/?l=zope-announce&m=101897462107967&w=2"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20020822024423/http://www.iss.net/security_center/static/9621.php"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20021018100409/http://online.securityfocus.com/bid/5813"
  }, {
    "type" : "WEB",
    "url" : "http://www.redhat.com/support/errata/RHSA-2002-060.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.zope.org/Products/Zope/Hotfix_2002-04-15/security_alert"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-12T18:04:43Z",
    "nvd_published_at" : "2002-07-23T04:00:00Z"
  }
}