Debian DLA-2090-1 : qemu security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2090-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(133366);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/28");

  script_cve_id("CVE-2020-7039");

  script_name(english:"Debian DLA-2090-1 : qemu security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0,
mismanag es memory, as demonstrated by IRC DCC commands in EMU_IRC.
This can cause a heap-based buffer overflow or other out-of-bounds
acces s which can lead to a DoS or potential execute arbitrary code.

For Debian 8 'Jessie', this problem has been fixed in version
1:2.1+dfsg-12+deb8u13.

We recommend that you upgrade your qemu packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2020/01/msg00036.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/qemu");
  script_set_attribute(attribute:"solution", value:
"Upgrade 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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-7039");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/31");

  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:"p-cpe:/a:debian:debian_linux:qemu-guest-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-arm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-mips");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-misc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-ppc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-sparc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-system-x86");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-user");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-user-binfmt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-user-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:qemu-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  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) 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/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:"8.0", prefix:"qemu", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-guest-agent", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-kvm", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-arm", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-common", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-mips", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-misc", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-ppc", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-sparc", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-system-x86", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-user", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-user-binfmt", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-user-static", reference:"1:2.1+dfsg-12+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"qemu-utils", reference:"1:2.1+dfsg-12+deb8u13")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");