RHSA-2002_154

Vulnerability from csaf_redhat - Published: 2002-07-31 08:50 - Updated: 2024-11-21 22:26
Summary
Red Hat Security Advisory: mm security update

Notes

Topic
Updated mm packages are now available for Red Hat Linux Advanced Server. This update addresses possible vulnerabilities in how the MM library opens temporary files.
Details
The MM library provides an abstraction layer which allows related processes to easily share data. On systems where shared memory or other inter-process communication mechanisms are not available, the MM library will emulate them using temporary files. MM is used in Red Hat Linux to providing shared memory pools to Apache modules. Versions of MM up to and including 1.1.3 open temporary files in an unsafe manner, allowing a malicious local user to cause an application which uses MM to overwrite any file to which it has write access. All users are advised to upgrade to these errata packages which contain a patched version of MM that is not vulnerable to this issue. Thanks to Marcus Meissner for providing a patch for this issue.
Terms of Use
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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{
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      "text": "Moderate"
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    "category": "csaf_security_advisory",
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    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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        "url": "https://www.first.org/tlp/"
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated mm packages are now available for Red Hat Linux Advanced Server. \nThis update addresses possible vulnerabilities in how the MM library\nopens temporary files.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The MM library provides an abstraction layer which allows related processes\nto easily share data.  On systems where shared memory or other\ninter-process communication mechanisms are not available, the MM library\nwill emulate them using temporary files.  MM is used in Red Hat Linux to \nproviding shared memory pools to Apache modules.\n\nVersions of MM up to and including 1.1.3 open temporary files in an unsafe\nmanner, allowing a malicious local user to cause an application which uses\nMM to overwrite any file to which it has write access.\n\nAll users are advised to upgrade to these errata packages which contain a\npatched version of MM that is not vulnerable to this issue.\n\nThanks to Marcus Meissner for providing a patch for this issue.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
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        "url": "https://access.redhat.com/errata/RHSA-2002:154"
      },
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        "summary": "http://www.engelschall.com/sw/mm/",
        "url": "http://www.engelschall.com/sw/mm/"
      },
      {
        "category": "external",
        "summary": "59504",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=59504"
      },
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        "summary": "68895",
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        "summary": "68896",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=68896"
      },
      {
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        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2002/rhsa-2002_154.json"
      }
    ],
    "title": "Red Hat Security Advisory: mm security update",
    "tracking": {
      "current_release_date": "2024-11-21T22:26:48+00:00",
      "generator": {
        "date": "2024-11-21T22:26:48+00:00",
        "engine": {
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          "version": "4.2.1"
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      "id": "RHSA-2002:154",
      "initial_release_date": "2002-07-31T08:50:00+00:00",
      "revision_history": [
        {
          "date": "2002-07-31T08:50:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2002-07-25T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:26:48+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                "product": {
                  "name": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                  "product_id": "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 ",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::as"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Advanced Server"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2002-0658",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616790"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "OSSP mm library (libmm) before 1.2.0 allows the local Apache user to gain privileges via temporary files, possibly via a symbolic link attack.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
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        "fixed": [
          "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 "
        ]
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        },
        {
          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616790"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2002-0658",
          "url": "https://www.cve.org/CVERecord?id=CVE-2002-0658"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2002-0658",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2002-0658"
        }
      ],
      "release_date": "2002-07-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2002-07-31T08:50:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
          "product_ids": [
            "Red Hat Enterprise Linux AS (Advanced Server) version 2.1 "
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2002:154"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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  • 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.
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  • 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.