rhsa-2008_0895
Vulnerability from csaf_redhat
Published
2008-10-21 14:52
Modified
2024-11-22 02:16
Summary
Red Hat Security Advisory: ruby security update

Notes

Topic
Updated ruby packages that fix various security issues are now available for Red Hat Enterprise Linux 2.1. This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Details
Ruby is an interpreted scripting language for quick and easy object-oriented programming. A number of flaws were found in the safe-level restrictions in Ruby. It was possible for an attacker to create a carefully crafted malicious script that can allow the bypass of certain safe-level restrictions. (CVE-2008-3655) A denial of service flaw was found in Ruby's regular expression engine. If a Ruby script tried to process a large amount of data via a regular expression, it could cause Ruby to enter an infinite-loop and crash. (CVE-2008-3443) Users of ruby should upgrade to these updated packages, which contain backported patches to resolve these 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.


To clipboard 

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          "url": "https://access.redhat.com/errata/RHSA-2008:0895"
        }
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "ruby: Memory allocation failure in Ruby regex engine (remotely exploitable DoS)"
    },
    {
      "cve": "CVE-2008-3655",
      "discovery_date": "2008-08-08T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "458948"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "ruby: multiple insufficient safe mode restrictions",
          "title": "Vulnerability summary"
        }
      ],
      "product_status": {
        "fixed": [
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2008-3655"
        },
        {
          "category": "external",
          "summary": "RHBZ#458948",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=458948"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2008-3655",
          "url": "https://www.cve.org/CVERecord?id=CVE-2008-3655"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2008-3655",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-3655"
        }
      ],
      "release_date": "2008-08-08T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2008-10-21T14:52:00+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",
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      ],
      "threats": [
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          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "ruby: multiple insufficient safe mode restrictions"
    }
  ]
}


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