ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it mishandles a case involving the first fragment. (CVE-2019-14378)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2020-1401.
#
include('compat.inc');
if (description)
{
script_id(134329);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/25");
script_cve_id("CVE-2019-14378");
script_xref(name:"ALAS", value:"2020-1401");
script_name(english:"Amazon Linux 2 : qemu (ALAS-2020-1401)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer
overflow via a large packet because it mishandles a case involving the
first fragment. (CVE-2019-14378)");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2020-1401.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update qemu' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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-2019-14378");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/29");
script_set_attribute(attribute:"patch_publication_date", value:"2020/03/06");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:ivshmem-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-audio-alsa");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-audio-oss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-audio-pa");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-audio-sdl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-curl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-dmg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-iscsi");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-nfs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-rbd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-block-ssh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-guest-agent");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-img");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-kvm-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-system-aarch64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-system-aarch64-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-system-x86");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-system-x86-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-ui-curses");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-ui-gtk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-ui-sdl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-user");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-user-binfmt");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:qemu-user-static");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Amazon Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"AL2", reference:"ivshmem-tools-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-audio-alsa-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-audio-oss-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-audio-pa-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-audio-sdl-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-block-curl-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-block-dmg-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-block-iscsi-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-block-nfs-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"qemu-block-rbd-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-block-ssh-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-common-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-debuginfo-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-guest-agent-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-img-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-kvm-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-kvm-core-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-system-aarch64-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-system-aarch64-core-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-system-x86-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-system-x86-core-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-ui-curses-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-ui-gtk-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-ui-sdl-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-user-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-user-binfmt-3.1.0-8.amzn2.0.1")) flag++;
if (rpm_check(release:"AL2", reference:"qemu-user-static-3.1.0-8.amzn2.0.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ivshmem-tools / qemu / qemu-audio-alsa / qemu-audio-oss / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | ivshmem-tools | p-cpe:/a:amazon:linux:ivshmem-tools |
amazon | linux | qemu | p-cpe:/a:amazon:linux:qemu |
amazon | linux | qemu-audio-alsa | p-cpe:/a:amazon:linux:qemu-audio-alsa |
amazon | linux | qemu-audio-oss | p-cpe:/a:amazon:linux:qemu-audio-oss |
amazon | linux | qemu-audio-pa | p-cpe:/a:amazon:linux:qemu-audio-pa |
amazon | linux | qemu-audio-sdl | p-cpe:/a:amazon:linux:qemu-audio-sdl |
amazon | linux | qemu-block-curl | p-cpe:/a:amazon:linux:qemu-block-curl |
amazon | linux | qemu-block-dmg | p-cpe:/a:amazon:linux:qemu-block-dmg |
amazon | linux | qemu-block-iscsi | p-cpe:/a:amazon:linux:qemu-block-iscsi |
amazon | linux | qemu-block-nfs | p-cpe:/a:amazon:linux:qemu-block-nfs |