CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
79.2%
Integer overflows in the processing of packets in network cards emulated by QEMU, a fast processor emulator, could result in denial of service.
In addition this update backports support to passthrough the new CPU features added in the intel-microcode update shipped in DSA 4273 to x86-based guests.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-4338. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(118895);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/24");
script_cve_id("CVE-2018-10839", "CVE-2018-17962", "CVE-2018-17963");
script_xref(name:"DSA", value:"4338");
script_name(english:"Debian DSA-4338-1 : qemu - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"Integer overflows in the processing of packets in network cards
emulated by QEMU, a fast processor emulator, could result in denial of
service.
In addition this update backports support to passthrough the new CPU
features added in the intel-microcode update shipped in DSA 4273 to
x86-based guests.");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908682");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910431");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911468");
script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911469");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/qemu");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/qemu");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2018/dsa-4338");
script_set_attribute(attribute:"solution", value:
"Upgrade the qemu packages.
For the stable distribution (stretch), these problems have been fixed
in version 1:2.8+dfsg-6+deb9u5.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/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-2018-17963");
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:"2018/10/09");
script_set_attribute(attribute:"patch_publication_date", value:"2018/11/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"9.0", prefix:"qemu", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-block-extra", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-guest-agent", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-kvm", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-arm", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-common", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-mips", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-misc", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-ppc", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-sparc", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-system-x86", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-user", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-user-binfmt", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-user-static", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (deb_check(release:"9.0", prefix:"qemu-utils", reference:"1:2.8+dfsg-6+deb9u5")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10839
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17962
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963
bugs.debian.org/cgi-bin/bugreport.cgi?bug=908682
bugs.debian.org/cgi-bin/bugreport.cgi?bug=910431
bugs.debian.org/cgi-bin/bugreport.cgi?bug=911468
bugs.debian.org/cgi-bin/bugreport.cgi?bug=911469
packages.debian.org/source/stretch/qemu
security-tracker.debian.org/tracker/source-package/qemu
www.debian.org/security/2018/dsa-4338
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
79.2%