RHSA-2007:0542
Vulnerability from csaf_redhat
Published
2007-11-07 09:00
Modified
2025-11-21 17:31
Summary
Red Hat Security Advisory: mcstrans security and bug fix update

Notes

Topic
An updated mcstrans package that fixes a security issue and a bug is now available. This update has been rated as having low security impact by the Red Hat Security Response Team.
Details
mcstrans is the translation daemon used on SELinux machines to translate program context into human readable form. An algorithmic complexity weakness was found in the way the mcstrans daemon handled ranges of compartments in sensitivity labels. A local user could trigger this flaw causing mctransd to temporarily stop responding to other requests; a partial denial of service. (CVE-2007-4570) This update also fixes a problem where the mcstrans daemon was preventing SSH connections into an SELinux box, that was running a Multi-Level Security (MLS) Policy with multiple categories. Users of mcstrans are advised to upgrade to this updated package, which resolves 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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          "text": "Algorithmic complexity vulnerability in the MCS translation daemon in mcstrans 0.2.3 allows local users to cause a denial of service (temporary daemon outage) via a large range of compartments in sensitivity labels.",
          "title": "Vulnerability description"
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          "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.ppc",
          "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.s390x",
          "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.x86_64",
          "5Server:mcstrans-0:0.2.6-1.el5.i386",
          "5Server:mcstrans-0:0.2.6-1.el5.ia64",
          "5Server:mcstrans-0:0.2.6-1.el5.ppc",
          "5Server:mcstrans-0:0.2.6-1.el5.s390x",
          "5Server:mcstrans-0:0.2.6-1.el5.src",
          "5Server:mcstrans-0:0.2.6-1.el5.x86_64",
          "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.i386",
          "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.ia64",
          "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.ppc",
          "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.s390x",
          "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2007-4570"
        },
        {
          "category": "external",
          "summary": "RHBZ#288201",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=288201"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2007-4570",
          "url": "https://www.cve.org/CVERecord?id=CVE-2007-4570"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2007-4570",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2007-4570"
        }
      ],
      "release_date": "2007-11-07T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2007-11-07T09:00:00+00:00",
          "details": "Before applying this update, make sure that all previously-released\nerrata relevant to your system have been applied.  \n\nThis update is available via Red Hat Network.  Details on how to use \nthe Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/FAQ_58_10188",
          "product_ids": [
            "5Client:mcstrans-0:0.2.6-1.el5.i386",
            "5Client:mcstrans-0:0.2.6-1.el5.ia64",
            "5Client:mcstrans-0:0.2.6-1.el5.ppc",
            "5Client:mcstrans-0:0.2.6-1.el5.s390x",
            "5Client:mcstrans-0:0.2.6-1.el5.src",
            "5Client:mcstrans-0:0.2.6-1.el5.x86_64",
            "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.i386",
            "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.ia64",
            "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.ppc",
            "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.s390x",
            "5Client:mcstrans-debuginfo-0:0.2.6-1.el5.x86_64",
            "5Server:mcstrans-0:0.2.6-1.el5.i386",
            "5Server:mcstrans-0:0.2.6-1.el5.ia64",
            "5Server:mcstrans-0:0.2.6-1.el5.ppc",
            "5Server:mcstrans-0:0.2.6-1.el5.s390x",
            "5Server:mcstrans-0:0.2.6-1.el5.src",
            "5Server:mcstrans-0:0.2.6-1.el5.x86_64",
            "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.i386",
            "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.ia64",
            "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.ppc",
            "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.s390x",
            "5Server:mcstrans-debuginfo-0:0.2.6-1.el5.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2007:0542"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "mctransd DoS"
    }
  ]
}


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