rhsa-2005:261
Vulnerability from csaf_redhat
Published
2005-04-28 15:16
Modified
2024-11-21 23:32
Summary
Red Hat Security Advisory: glibc security update

Notes

Topic
Updated glibc packages that address several bugs are now available. This update has been rated as having low security impact by the Red Hat Security Response Team.
Details
The GNU libc packages (known as glibc) contain the standard C libraries used by applications. Flaws in the catchsegv and glibcbug scripts were discovered. A local user could utilize these flaws to overwrite files via a symlink attack on temporary files. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0968 and CAN-2004-1382 to these issues. It was discovered that the use of LD_DEBUG and LD_SHOW_AUXV were not restricted for a setuid program. A local user could utilize this flaw to gain information, such as the list of symbols used by the program. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1453 to this issue. This erratum also addresses the following bugs in the GNU C Library: - Now avoids calling sigaction (SIGPIPE, ...) in syslog implementation - Fixed poll on Itanium - Now allows setenv/putenv in shared library constructors Users of glibc are advised to upgrade to these erratum packages that remove the unecessary glibcbug script and contain backported patches to correct these other issues.
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": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
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    "notes": [
      {
        "category": "summary",
        "text": "Updated glibc packages that address several bugs are now available.\n\nThis update has been rated as having low security impact by the Red Hat\nSecurity Response Team.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The GNU libc packages (known as glibc) contain the standard C libraries\nused by applications.\n\nFlaws in the catchsegv and glibcbug scripts were discovered. A local user\ncould utilize these flaws to overwrite files via a symlink attack on\ntemporary files.  The Common Vulnerabilities and Exposures project\n(cve.mitre.org) has assigned the name CAN-2004-0968 and CAN-2004-1382 to\nthese issues.\n\nIt was discovered that the use of LD_DEBUG and LD_SHOW_AUXV were not\nrestricted for a setuid program.  A local user could utilize this flaw to\ngain information, such as the list of symbols used by the program.  The\nCommon Vulnerabilities and Exposures project (cve.mitre.org) has assigned\nthe name  CAN-2004-1453 to this issue.\n\nThis erratum also addresses the following bugs in the GNU C Library:\n- Now avoids calling sigaction (SIGPIPE, ...) in syslog implementation\n- Fixed poll on Itanium\n- Now allows setenv/putenv in shared library constructors\n\nUsers of glibc are advised to upgrade to these erratum packages that remove\nthe unecessary glibcbug script and contain backported patches to correct\nthese other issues.",
        "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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    "title": "Red Hat Security Advisory: glibc security update",
    "tracking": {
      "current_release_date": "2024-11-21T23:32:28+00:00",
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        }
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          "category": "description",
          "text": "The catchsegv script in glibc 2.3.2 and earlier allows local users to overwrite files via a symlink attack on temporary files.",
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        },
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          "category": "summary",
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      "remediations": [
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          "date": "2005-04-28T15:16:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.  Use Red Hat\nNetwork to download and update your packages.  To launch the Red Hat\nUpdate Agent, use the following command:\n\n    up2date\n\nFor information on how to install packages manually, refer to the\nfollowing Web page for the System Administration or Customization\nguide specific to your system:\n\n    http://www.redhat.com/docs/manuals/enterprise/",
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          ],
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        }
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          "details": "Low"
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    {
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      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
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        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The glibcbug script in glibc 2.3.4 and earlier allows local users to overwrite arbitrary files via a symlink attack on temporary files, a different vulnerability than CVE-2004-0968.",
          "title": "Vulnerability description"
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          "product_ids": [
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            "Red Hat Enterprise Linux ES version 2.1",
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          "text": "1617412"
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          "text": "GNU glibc 2.3.4 before 2.3.4.20040619, 2.3.3 before 2.3.3.20040420, and 2.3.2 before 2.3.2-r10 does not restrict the use of LD_DEBUG for a setuid program, which allows local users to gain sensitive information, such as the list of symbols used by the program.",
          "title": "Vulnerability description"
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        },
        {
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2004-1453",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2004-1453"
        }
      ],
      "release_date": "2004-08-17T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2005-04-28T15:16:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.  Use Red Hat\nNetwork to download and update your packages.  To launch the Red Hat\nUpdate Agent, use the following command:\n\n    up2date\n\nFor information on how to install packages manually, refer to the\nfollowing Web page for the System Administration or Customization\nguide specific to your system:\n\n    http://www.redhat.com/docs/manuals/enterprise/",
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            "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"
          ],
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          },
          "url": "https://access.redhat.com/errata/RHSA-2005:261"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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