{
  "affected": [],
  "aliases": [
    "CVE-2002-1159"
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  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2002-12-18T05:00:00Z",
    "severity": "MODERATE"
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  "details": "Canna 3.6 and earlier does not properly validate requests, which allows remote attackers to cause a denial of service or information leak.",
  "id": "GHSA-v63f-8cmr-47h8",
  "modified": "2022-04-30T18:20:39Z",
  "published": "2022-04-30T18:20:39Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-1159"
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      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/10832"
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        "url": "https://www.first.org/tlp/"
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        "category": "summary",
        "text": "The Canna server, used for Japanese character input, has two security\nvulnerabilities including an exploitable buffer overflow that allows a local\nuser to gain \u0027bin\u0027 user privileges. Updated packages for Red Hat Linux\nAdvanced Server are available.\n\n[Updated 13 Jan 2003]\nAdded fixed packages for the Itanium (IA64) architecture.\n\n[Updated 06 Feb 2003]\nAdded fixed packages for Advanced Workstation 2.1",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Canna is a kana-kanji conversion server which is necessary for Japanese\nlanguage character input. \n\nA buffer overflow bug in the Canna server up to and including version 3.5b2\nallows a local user to gain the privileges of the user \u0027bin\u0027 which can\nlead to further exploits. The Common Vulnerabilities and Exposures project\n(cve.mitre.org) has assigned the name CAN-2002-1158 to this issue.\n\nIn addition, it was discovered that request validation was lacking in Canna\nserver versions 3.6 and earlier. A malicious remote user could exploit this\nvulnerability to leak information or cause a denial of service attack. \n(CAN-2002-1159)\n\nRed Hat Linux Advanced Server ships with a Canna package vulnerable\nto these issues; however, the package is normally only installed when\nJapanese language support is selected during installation.\n\nAll users of Canna are advised to upgrade to these errata packages which\ncontain a backported security fix and are not vulnerable to this issue.\n\nRed Hat would like to thank hsj and AIDA Shinra for the responsible\ndisclosure of these issues.",
        "title": "Details"
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        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
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        "summary": "78108",
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_261.json"
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    "title": "Red Hat Security Advisory: Canna security update",
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}