Vulnerabilities > CVE-2004-0491 - Local MEMLOCK RLIMIT Bypass Denial Of Service vulnerability in Redhat Enterprise Linux 3.0
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
PARTIAL Availability impact
NONE Summary
The linux-2.4.21-mlock.patch in Red Hat Enterprise Linux 3 does not properly maintain the mlock page count when one process unlocks pages that belong to another process, which allows local users to mlock more memory than specified by the rlimit.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
OS | 1 |
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2005-472.NASL description Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available. This security advisory has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. These new kernel packages contain fixes for the three security issues described below as well as an important fix for a problem that could lead to data corruption on x86-architecture SMP systems with greater than 4GB of memory through heavy usage of multi-threaded applications. A flaw between execve() syscall handling and core dumping of ELF-format executables allowed local unprivileged users to cause a denial of service (system crash) or possibly gain privileges. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-1263 to this issue. A flaw in shared memory locking allowed local unprivileged users to lock and unlock regions of shared memory segments they did not own (CVE-2005-0176). A flaw in the locking of SysV IPC shared memory regions allowed local unprivileged users to bypass their RLIMIT_MEMLOCK resource limit (CVE-2004-0491). Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed. All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. Please also consult the RHEL3 Update 5 advisory RHSA-2005:294 for the complete list of features added and bugs fixed in U5, which was released only a week prior to this security update. last seen 2020-06-01 modified 2020-06-02 plugin id 18389 published 2005-05-28 reporter This script is Copyright (C) 2005-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/18389 title RHEL 3 : kernel (RHSA-2005:472) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2005:472. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(18389); script_version ("1.26"); script_cvs_date("Date: 2019/10/25 13:36:11"); script_cve_id("CVE-2004-0491", "CVE-2005-0176", "CVE-2005-1263"); script_xref(name:"RHSA", value:"2005:472"); script_name(english:"RHEL 3 : kernel (RHSA-2005:472)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available. This security advisory has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. These new kernel packages contain fixes for the three security issues described below as well as an important fix for a problem that could lead to data corruption on x86-architecture SMP systems with greater than 4GB of memory through heavy usage of multi-threaded applications. A flaw between execve() syscall handling and core dumping of ELF-format executables allowed local unprivileged users to cause a denial of service (system crash) or possibly gain privileges. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-1263 to this issue. A flaw in shared memory locking allowed local unprivileged users to lock and unlock regions of shared memory segments they did not own (CVE-2005-0176). A flaw in the locking of SysV IPC shared memory regions allowed local unprivileged users to bypass their RLIMIT_MEMLOCK resource limit (CVE-2004-0491). Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed. All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. Please also consult the RHEL3 Update 5 advisory RHSA-2005:294 for the complete list of features added and bugs fixed in U5, which was released only a week prior to this security update." ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2004-0491" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2005-0176" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2005-1263" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2005:472" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-BOOT"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-doc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-hugemem"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-hugemem-unsupported"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-smp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-smp-unsupported"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-source"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-unsupported"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:3"); script_set_attribute(attribute:"vuln_publication_date", value:"2004/12/31"); script_set_attribute(attribute:"patch_publication_date", value:"2005/05/25"); script_set_attribute(attribute:"plugin_publication_date", value:"2005/05/28"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2005-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); include("ksplice.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^3([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 3.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); if (get_one_kb_item("Host/ksplice/kernel-cves")) { rm_kb_item(name:"Host/uptrack-uname-r"); cve_list = make_list("CAN-2005-1263", "CVE-2004-0491", "CVE-2005-0176", "CVE-2005-1263"); if (ksplice_cves_check(cve_list)) { audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2005:472"); } else { __rpm_report = ksplice_reporting_text(); } } yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2005:472"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL3", reference:"kernel-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"i386", reference:"kernel-BOOT-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", reference:"kernel-doc-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"i686", reference:"kernel-hugemem-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"i686", reference:"kernel-hugemem-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"i686", reference:"kernel-smp-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"x86_64", reference:"kernel-smp-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"i686", reference:"kernel-smp-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", cpu:"x86_64", reference:"kernel-smp-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", reference:"kernel-source-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"RHEL3", reference:"kernel-unsupported-2.4.21-32.0.1.EL")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-BOOT / kernel-doc / kernel-hugemem / etc"); } }
NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2005-472.NASL description Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available. This security advisory has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. These new kernel packages contain fixes for the three security issues described below as well as an important fix for a problem that could lead to data corruption on x86-architecture SMP systems with greater than 4GB of memory through heavy usage of multi-threaded applications. A flaw between execve() syscall handling and core dumping of ELF-format executables allowed local unprivileged users to cause a denial of service (system crash) or possibly gain privileges. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-1263 to this issue. A flaw in shared memory locking allowed local unprivileged users to lock and unlock regions of shared memory segments they did not own (CVE-2005-0176). A flaw in the locking of SysV IPC shared memory regions allowed local unprivileged users to bypass their RLIMIT_MEMLOCK resource limit (CVE-2004-0491). Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed. All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. Please also consult the RHEL3 Update 5 advisory RHSA-2005:294 for the complete list of features added and bugs fixed in U5, which was released only a week prior to this security update. last seen 2020-06-01 modified 2020-06-02 plugin id 21828 published 2006-07-03 reporter This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/21828 title CentOS 3 : kernel (CESA-2005:472) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2005:472 and # CentOS Errata and Security Advisory 2005:472 respectively. # include("compat.inc"); if (description) { script_id(21828); script_version("1.15"); script_cvs_date("Date: 2019/10/25 13:36:02"); script_cve_id("CVE-2004-0491", "CVE-2005-0176", "CVE-2005-1263"); script_xref(name:"RHSA", value:"2005:472"); script_name(english:"CentOS 3 : kernel (CESA-2005:472)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote CentOS host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 3 kernel are now available. This security advisory has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. These new kernel packages contain fixes for the three security issues described below as well as an important fix for a problem that could lead to data corruption on x86-architecture SMP systems with greater than 4GB of memory through heavy usage of multi-threaded applications. A flaw between execve() syscall handling and core dumping of ELF-format executables allowed local unprivileged users to cause a denial of service (system crash) or possibly gain privileges. The Common Vulnerabilities and Exposures project has assigned the name CVE-2005-1263 to this issue. A flaw in shared memory locking allowed local unprivileged users to lock and unlock regions of shared memory segments they did not own (CVE-2005-0176). A flaw in the locking of SysV IPC shared memory regions allowed local unprivileged users to bypass their RLIMIT_MEMLOCK resource limit (CVE-2004-0491). Note: The kernel-unsupported package contains various drivers and modules that are unsupported and therefore might contain security problems that have not been addressed. All Red Hat Enterprise Linux 3 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum. Please also consult the RHEL3 Update 5 advisory RHSA-2005:294 for the complete list of features added and bugs fixed in U5, which was released only a week prior to this security update." ); # https://lists.centos.org/pipermail/centos-announce/2005-May/011760.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?4a08da71" ); # https://lists.centos.org/pipermail/centos-announce/2005-May/011761.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?d12fa673" ); script_set_attribute( attribute:"solution", value:"Update the affected kernel packages." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-BOOT"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-doc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-hugemem"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-hugemem-unsupported"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-smp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-smp-unsupported"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-source"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-unsupported"); script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:3"); script_set_attribute(attribute:"vuln_publication_date", value:"2004/12/31"); script_set_attribute(attribute:"patch_publication_date", value:"2005/05/25"); script_set_attribute(attribute:"plugin_publication_date", value:"2006/07/03"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2006-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"CentOS Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/CentOS/release"); if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS"); os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS"); os_ver = os_ver[1]; if (! preg(pattern:"^3([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 3.x", "CentOS " + os_ver); if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu); flag = 0; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-BOOT-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-doc-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-doc-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-hugemem-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-hugemem-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-smp-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-smp-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-smp-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-smp-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-source-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-source-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"i386", reference:"kernel-unsupported-2.4.21-32.0.1.EL")) flag++; if (rpm_check(release:"CentOS-3", cpu:"x86_64", reference:"kernel-unsupported-2.4.21-32.0.1.EL")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-BOOT / kernel-doc / kernel-hugemem / etc"); }
Oval
accepted 2013-04-29T04:07:37.323-04:00 class vulnerability contributors name Aharon Chernin organization SCAP.com, LLC name Dragos Prisaca organization G2, Inc.
definition_extensions comment The operating system installed on the system is Red Hat Enterprise Linux 3 oval oval:org.mitre.oval:def:11782 comment CentOS Linux 3.x oval oval:org.mitre.oval:def:16651
description The linux-2.4.21-mlock.patch in Red Hat Enterprise Linux 3 does not properly maintain the mlock page count when one process unlocks pages that belong to another process, which allows local users to mlock more memory than specified by the rlimit. family unix id oval:org.mitre.oval:def:10672 status accepted submitted 2010-07-09T03:56:16-04:00 title The linux-2.4.21-mlock.patch in Red Hat Enterprise Linux 3 does not properly maintain the mlock page count when one process unlocks pages that belong to another process, which allows local users to mlock more memory than specified by the rlimit. version 26 accepted 2005-08-18T07:37:00.000-04:00 class vulnerability contributors name Jay Beale organization Bastille Linux description The linux-2.4.21-mlock.patch in Red Hat Enterprise Linux 3 does not properly maintain the mlock page count when one process unlocks pages that belong to another process, which allows local users to mlock more memory than specified by the rlimit. family unix id oval:org.mitre.oval:def:1117 status accepted submitted 2005-06-29T12:00:00.000-04:00 title mlock Memory Page Tracking Vulnerability version 4
Redhat
advisories |
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rpms |
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References
- ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U
- http://marc.info/?l=linux-kernel&m=108087017610947&w=2
- http://secunia.com/advisories/19607
- http://www.redhat.com/support/errata/RHSA-2005-472.html
- http://www.securityfocus.com/bid/13769
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126411
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10672
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1117