Vulnerabilities > CVE-2018-18066 - NULL Pointer Dereference vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1081.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1081 advisory. - net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service (CVE-2018-18066) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-01 plugin id 135063 published 2020-04-01 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135063 title RHEL 7 : net-snmp (RHSA-2020:1081) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2020:1081. The text # itself is copyright (C) Red Hat, Inc. # include('compat.inc'); if (description) { script_id(135063); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/21"); script_cve_id("CVE-2018-18066"); script_xref(name:"RHSA", value:"2020:1081"); script_name(english:"RHEL 7 : net-snmp (RHSA-2020:1081)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute(attribute:"synopsis", value: "The remote Red Hat host is missing a security update."); script_set_attribute(attribute:"description", value: "The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1081 advisory. - net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service (CVE-2018-18066) Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number."); script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/476.html"); script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:1081"); script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2018-18066"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1388118"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1547355"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1695363"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1700494"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1703752"); script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1779609"); script_set_attribute(attribute:"solution", value: "Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-18066"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_cwe_id(476); script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/08"); script_set_attribute(attribute:"patch_publication_date", value:"2020/03/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/01"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::client"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::computenode"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::server"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::workstation"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-agent-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-gui"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-perl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-python"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-sysvinit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:net-snmp-utils"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Red Hat Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.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'); 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:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Red Hat 7.x', 'Red Hat ' + os_ver); if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item('Host/cpu'); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu); pkgs = [ {'reference':'net-snmp-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-agent-libs-5.7.2-47.el7', 'cpu':'i686', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-agent-libs-5.7.2-47.el7', 'cpu':'s390', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-agent-libs-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-agent-libs-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-devel-5.7.2-47.el7', 'cpu':'i686', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-devel-5.7.2-47.el7', 'cpu':'s390', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-devel-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-devel-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-gui-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-gui-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-libs-5.7.2-47.el7', 'cpu':'i686', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-libs-5.7.2-47.el7', 'cpu':'s390', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-libs-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-libs-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-perl-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-perl-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-python-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-python-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-sysvinit-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-sysvinit-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-utils-5.7.2-47.el7', 'cpu':'s390x', 'release':'7', 'epoch':'1'}, {'reference':'net-snmp-utils-5.7.2-47.el7', 'cpu':'x86_64', 'release':'7', 'epoch':'1'} ]; flag = 0; foreach package_array ( pkgs ) { reference = NULL; release = NULL; sp = NULL; cpu = NULL; el_string = NULL; rpm_spec_vers_cmp = NULL; epoch = NULL; if (!empty_or_null(package_array['reference'])) reference = package_array['reference']; if (!empty_or_null(package_array['release'])) release = 'RHEL' + package_array['release']; if (!empty_or_null(package_array['sp'])) sp = package_array['sp']; if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu']; if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string']; if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp']; if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch']; if (reference && release) { if (rpm_spec_vers_cmp) { if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:TRUE)) flag++; } else { if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch)) flag++; } } } if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, 'net-snmp / net-snmp-agent-libs / net-snmp-devel / etc'); }
NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1035.NASL description According to the version of the net-snmp packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.(CVE-2018-18066) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-02-15 plugin id 122208 published 2019-02-15 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/122208 title EulerOS 2.0 SP3 : net-snmp (EulerOS-SA-2019-1035) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(122208); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04"); script_cve_id( "CVE-2018-18066" ); script_name(english:"EulerOS 2.0 SP3 : net-snmp (EulerOS-SA-2019-1035)"); script_summary(english:"Checks the rpm output for the updated package."); script_set_attribute(attribute:"synopsis", value: "The remote EulerOS host is missing a security update."); script_set_attribute(attribute:"description", value: "According to the version of the net-snmp packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.(CVE-2018-18066) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues."); # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-1035 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3b409dbb"); script_set_attribute(attribute:"solution", value: "Update the affected net-snmp package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"patch_publication_date", value:"2019/01/25"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/15"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:net-snmp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:net-snmp-agent-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:net-snmp-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:net-snmp-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:net-snmp-utils"); script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Huawei Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp"); script_exclude_keys("Host/EulerOS/uvp_version"); 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/EulerOS/release"); if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS"); if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0"); sp = get_kb_item("Host/EulerOS/sp"); if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3"); uvp = get_kb_item("Host/EulerOS/uvp_version"); if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp); if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu); flag = 0; pkgs = ["net-snmp-5.7.2-24.1.h1", "net-snmp-agent-libs-5.7.2-24.1.h1", "net-snmp-devel-5.7.2-24.1.h1", "net-snmp-libs-5.7.2-24.1.h1", "net-snmp-utils-5.7.2-24.1.h1"]; foreach (pkg in pkgs) if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, "net-snmp"); }
NASL family Scientific Linux Local Security Checks NASL id SL_20200407_NET_SNMP_ON_SL7_X.NASL description * net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service last seen 2020-04-30 modified 2020-04-21 plugin id 135825 published 2020-04-21 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135825 title Scientific Linux Security Update : net-snmp on SL7.x x86_64 (20200407) code # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(135825); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/04/24"); script_cve_id("CVE-2018-18066"); script_name(english:"Scientific Linux Security Update : net-snmp on SL7.x x86_64 (20200407)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Scientific Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "* net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service" ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind2004&L=SCIENTIFIC-LINUX-ERRATA&P=6398 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?280a7d0f" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-agent-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-gui"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-perl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-python"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-sysvinit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:net-snmp-utils"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/08"); script_set_attribute(attribute:"patch_publication_date", value:"2020/04/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/21"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu); flag = 0; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-agent-libs-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-debuginfo-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-devel-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-gui-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-libs-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-perl-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-python-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-sysvinit-5.7.2-47.el7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"net-snmp-utils-5.7.2-47.el7")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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, "net-snmp / net-snmp-agent-libs / net-snmp-debuginfo / etc"); }
NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-1081.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1081 advisory. - net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service (CVE-2018-18066) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-04-10 plugin id 135333 published 2020-04-10 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135333 title CentOS 7 : net-snmp (CESA-2020:1081) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1036.NASL description According to the version of the net-snmp packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.(CVE-2018-18066) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-02-15 plugin id 122209 published 2019-02-15 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/122209 title EulerOS 2.0 SP5 : net-snmp (EulerOS-SA-2019-1036) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1716.NASL description According to the version of the net-snmp packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.(CVE-2018-18066) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2019-07-22 plugin id 126844 published 2019-07-22 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/126844 title EulerOS 2.0 SP2 : net-snmp (EulerOS-SA-2019-1716) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1214.NASL description According to the version of the net-snmp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.i1/4^CVE-2018-18066i1/4%0 Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-19 modified 2019-04-09 plugin id 123900 published 2019-04-09 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123900 title EulerOS Virtualization 2.5.4 : net-snmp (EulerOS-SA-2019-1214) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1436.NASL description According to the versions of the net-snmp packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - It was discovered that the snmp_pdu_parse() mishandles error codes and is vulnerable to a heap corruption within the parsing of the PDU prior to the authentication process. A remote, unauthenticated attacker could use this flaw to crash snmpd or, potentially, execute arbitrary code on the system with the privileges of the user running snmpd.(CVE-2018-1000116) - snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.(CVE-2018-18066) - It was discovered that the snmp_pdu_parse() function could leave incompletely parsed varBind variables in the list of variables. A remote, unauthenticated attacker could use this flaw to crash snmpd or, potentially, execute arbitrary code on the system with the privileges of the user running snmpd.(CVE-2015-5621) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 124939 published 2019-05-14 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124939 title EulerOS Virtualization 3.0.1.0 : net-snmp (EulerOS-SA-2019-1436)
Redhat
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References
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
- https://security.netapp.com/advisory/ntap-20181107-0001/
- https://security.netapp.com/advisory/ntap-20181107-0001/
- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/
- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/
- https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/
- https://sourceforge.net/p/net-snmp/code/ci/f23bcd3ac6ddee5d0a48f9703007ccc738914791/
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html