rhsa-2003_389
Vulnerability from csaf_redhat
Published
2003-12-01 19:18
Modified
2024-11-21 22:52
Summary
Red Hat Security Advisory: kernel security update

Notes

Topic
Updated kernel packages are now available that fix a security vulnerability allowing local users to gain root privileges.
Details
The Linux kernel handles the basic functions of the operating system. A flaw in bounds checking in the do_brk() function in the Linux kernel versions 2.4.22 and previous can allow a local attacker to gain root privileges. This issue is known to be exploitable; an exploit has been seen in the wild that takes advantage of this vulnerability. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0961 to this issue. All users of Red Hat Enterprise Linux 2.1 are advised to upgrade to these errata packages, which contain a backported security patch that corrects this vulnerability. Users of Red Hat Enterprise Linux 3 should upgrade to the kernel packages provided by RHBA-2003:308 (released on 30 October 2003), which already contained a patch correcting 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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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated kernel packages are now available that fix a security\nvulnerability allowing local users to gain root privileges.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The Linux kernel handles the basic functions of the operating system.\n\nA flaw in bounds checking in the do_brk() function in the Linux kernel\nversions 2.4.22 and previous can allow a local attacker to gain root\nprivileges.  This issue is known to be exploitable; an exploit has been\nseen in the wild that takes advantage of this vulnerability.  The Common\nVulnerabilities and Exposures project (cve.mitre.org) has assigned the name\nCAN-2003-0961 to this issue.\n\nAll users of Red Hat Enterprise Linux 2.1 are advised to upgrade to these\nerrata packages, which contain a backported security patch that corrects\nthis vulnerability.\n\nUsers of Red Hat Enterprise Linux 3 should upgrade to the kernel packages\nprovided by RHBA-2003:308 (released on 30 October 2003), which already\ncontained a patch correcting 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",
        "summary": "https://access.redhat.com/errata/RHSA-2003:389",
        "url": "https://access.redhat.com/errata/RHSA-2003:389"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "http://rhn.redhat.com/errata/RHBA-2003-308.html",
        "url": "http://rhn.redhat.com/errata/RHBA-2003-308.html"
      },
      {
        "category": "external",
        "summary": "111240",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=111240"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_389.json"
      }
    ],
    "title": "Red Hat Security Advisory: kernel security update",
    "tracking": {
      "current_release_date": "2024-11-21T22:52:33+00:00",
      "generator": {
        "date": "2024-11-21T22:52:33+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2003:389",
      "initial_release_date": "2003-12-01T19:18:00+00:00",
      "revision_history": [
        {
          "date": "2003-12-01T19:18:00+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2003-12-01T00:00:00+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-21T22:52:33+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_name",
                "name": "Red Hat Enterprise Linux ES version 2.1",
                "product": {
                  "name": "Red Hat Enterprise Linux ES version 2.1",
                  "product_id": "Red Hat Enterprise Linux ES version 2.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::es"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux WS version 2.1",
                "product": {
                  "name": "Red Hat Enterprise Linux WS version 2.1",
                  "product_id": "Red Hat Enterprise Linux WS version 2.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:2.1::ws"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2003-0961",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1617104"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Integer overflow in the do_brk function for the brk system call in Linux kernel 2.4.22 and earlier allows local users to gain root privileges.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
          "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"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0961"
        },
        {
          "category": "external",
          "summary": "RHBZ#1617104",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1617104"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0961",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0961"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0961",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0961"
        }
      ],
      "release_date": "2003-12-01T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-12-01T19:18:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo use Red Hat Network to upgrade the kernel, launch the Red Hat Update\nAgent 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.  Note that you need to select the\nkernel explicitly if you are using the default configuration of up2date.\n\nTo install kernel packages manually, use \"rpm -ivh \u003cpackage\u003e\" and\nmodify system settings to boot the kernel you have installed.  To\ndo this, edit /boot/grub/grub.conf and change the default entry to\n\"default=0\" (or, if you have chosen to use LILO as your boot loader,\nedit /etc/lilo.conf and run lilo)\n\nDo not use \"rpm -Uvh\" as that will remove your running kernel binaries\nfrom your system.  You may use \"rpm -e\" to remove old kernels after\ndetermining that the new kernel functions properly 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"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:389"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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