RHSA-2009:1642

Vulnerability from csaf_redhat - Published: 2009-12-07 17:11 - Updated: 2025-11-21 17:35
Summary
Red Hat Security Advisory: acpid security update

Notes

Topic
An updated acpid package that fixes one security issue is now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team.
Details
acpid is a daemon that dispatches ACPI (Advanced Configuration and Power Interface) events to user-space programs. It was discovered that acpid could create its log file ("/var/log/acpid") with random permissions on some systems. A local attacker could use this flaw to escalate their privileges if the log file was created as world-writable and with the setuid or setgid bit set. (CVE-2009-4033) Please note that this flaw was due to a Red Hat-specific patch (acpid-1.0.4-fd.patch) included in the Red Hat Enterprise Linux 5 acpid package. Users are advised to upgrade to this updated package, which contains a backported patch to correct 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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      "discovery_date": "2009-11-03T00:00:00+00:00",
      "ids": [
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          "system_name": "Red Hat Bugzilla ID",
          "text": "542926"
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          "category": "description",
          "text": "A certain Red Hat patch for acpid 1.0.4 effectively triggers a call to the open function with insufficient arguments, which might allow local users to leverage weak permissions on /var/log/acpid, and obtain sensitive information by reading this file, cause a denial of service by overwriting this file, or gain privileges by executing this file.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "acpid: log file created with random permissions",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "date": "2009-12-07T17:11:00+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/docs/DOC-11259",
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            "baseScore": 6.9,
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            "5Server:acpid-0:1.0.4-9.el5_4.1.x86_64",
            "5Server:acpid-debuginfo-0:1.0.4-9.el5_4.1.i386",
            "5Server:acpid-debuginfo-0:1.0.4-9.el5_4.1.ia64",
            "5Server:acpid-debuginfo-0:1.0.4-9.el5_4.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "acpid: log file created with random permissions"
    }
  ]
}


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Tags
Taxonomy of the tags.




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.