RHSA-2003:134

Vulnerability from csaf_redhat - Published: 2003-04-28 12:46 - Updated: 2025-11-21 17:25
Summary
Red Hat Security Advisory: man security update

Notes

Topic
Updated man packages fix a minor security vulnerability.
Details
The man package includes tools for finding information and documentation about commands on a system. Versions of man before 1.51 have a bug where a malformed man file can cause a program named "unsafe" to be run. To exploit this vulnerability a local attacker would need to be able to get a victim to run man on a carefully crafted man file, and for the attacker to be able to create a file called "unsafe" that will be on the victim's default path. Users of man can upgrade to these erratum packages which contain a patch to correct this vulnerability. These erratum packages also contain fixes for a number of other bugs.
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": "Low"
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    "category": "csaf_security_advisory",
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    "distribution": {
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      "tlp": {
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    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated man packages fix a minor security vulnerability.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The man package includes tools for finding information and documentation\nabout commands on a system.\n\nVersions of man before 1.51 have a bug where a malformed man file can cause\na program named \"unsafe\" to be run.  To exploit this vulnerability a local\nattacker would need to be able to get a victim to run man on a carefully\ncrafted man file, and for the attacker to be able to create a file called\n\"unsafe\" that will be on the victim\u0027s default path.\n\nUsers of man can upgrade to these erratum packages which contain a patch to\ncorrect this vulnerability.  These erratum packages also contain fixes for\na number of other bugs.",
        "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"
      }
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    "publisher": {
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_134.json"
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    "title": "Red Hat Security Advisory: man security update",
    "tracking": {
      "current_release_date": "2025-11-21T17:25:56+00:00",
      "generator": {
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      "id": "RHSA-2003:134",
      "initial_release_date": "2003-04-28T12:46:00+00:00",
      "revision_history": [
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          "date": "2003-04-28T12:46:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
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          "date": "2003-04-28T00:00:00+00:00",
          "number": "2",
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  "product_tree": {
    "branches": [
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        "branches": [
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            "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 ",
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  "vulnerabilities": [
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1616969"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "man before 1.5l allows attackers to execute arbitrary code via a malformed man file with improper quotes, which causes the my_xsprintf function to return a string with the value \"unsafe,\" which is then executed as a program via a system call if it is in the search path of the user who runs man.",
          "title": "Vulnerability description"
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1616969"
        },
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0124",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0124"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0124",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0124"
        }
      ],
      "release_date": "2003-03-11T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-04-28T12:46:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch 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 ",
            "Red Hat Enterprise Linux ES version 2.1",
            "Red Hat Enterprise Linux WS version 2.1",
            "Red Hat Linux Advanced Workstation 2.1"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:134"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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Sightings

Author Source Type Date

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.