The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0775 advisory.
QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)
QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)
QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:0775. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(134393);
script_version("1.10");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/05/25");
script_cve_id("CVE-2019-14378", "CVE-2019-15890", "CVE-2020-7039");
script_xref(name:"RHSA", value:"2020:0775");
script_name(english:"RHEL 6 : qemu-kvm (RHSA-2020:0775)");
script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:0775 advisory.
- QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)
- QEMU: Slirp: use-after-free during packet reassembly (CVE-2019-15890)
- QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-14378");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2019-15890");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2020-7039");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:0775");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1734745");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1749716");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/1791551");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-7039");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-14378");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(122, 416);
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/29");
script_set_attribute(attribute:"patch_publication_date", value:"2020/03/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_els:6");
script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:rhel_eus:6.0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-img");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Red Hat Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
include('rhel.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.x', 'Red Hat ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
var constraints = [
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'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/debug',
'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/os',
'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/source/SRPMS',
'content/fastrack/rhel/workstation/6/x86_64/source/SRPMS'
],
'pkgs': [
{'reference':'qemu-guest-agent-0.12.1.2-2.506.el6_10.6', 'cpu':'i686', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
{'reference':'qemu-guest-agent-0.12.1.2-2.506.el6_10.6', 'cpu':'ppc64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
{'reference':'qemu-guest-agent-0.12.1.2-2.506.el6_10.6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
{'reference':'qemu-img-0.12.1.2-2.506.el6_10.6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
{'reference':'qemu-kvm-0.12.1.2-2.506.el6_10.6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
{'reference':'qemu-kvm-tools-0.12.1.2-2.506.el6_10.6', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'}
]
}
];
var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);
var flag = 0;
foreach var constraint_array ( constraints ) {
var repo_relative_urls = NULL;
if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
foreach var pkg ( constraint_array['pkgs'] ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
if (!empty_or_null(pkg['sp']) && !enterprise_linux_flag) sp = pkg['sp'];
if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
if (reference &&
_release &&
rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
(applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
var extra = NULL;
if (empty_or_null(applicable_repo_urls)) extra = rpm_report_get() + redhat_report_repo_caveat();
else extra = rpm_report_get() + redhat_report_package_caveat();
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'qemu-guest-agent / qemu-img / qemu-kvm / qemu-kvm-tools');
}
Vendor | Product | Version | CPE |
---|---|---|---|
redhat | enterprise_linux | 6 | cpe:/o:redhat:enterprise_linux:6 |
redhat | rhel_els | 6 | cpe:/o:redhat:rhel_els:6 |
redhat | rhel_eus | 6.0 | cpe:/o:redhat:rhel_eus:6.0 |
redhat | enterprise_linux | qemu-guest-agent | p-cpe:/a:redhat:enterprise_linux:qemu-guest-agent |
redhat | enterprise_linux | qemu-img | p-cpe:/a:redhat:enterprise_linux:qemu-img |
redhat | enterprise_linux | qemu-kvm | p-cpe:/a:redhat:enterprise_linux:qemu-kvm |
redhat | enterprise_linux | qemu-kvm-tools | p-cpe:/a:redhat:enterprise_linux:qemu-kvm-tools |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14378
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15890
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7039
access.redhat.com/errata/RHSA-2020:0775
access.redhat.com/security/cve/CVE-2019-14378
access.redhat.com/security/cve/CVE-2019-15890
access.redhat.com/security/cve/CVE-2020-7039
bugzilla.redhat.com/1734745
bugzilla.redhat.com/1749716
bugzilla.redhat.com/1791551