Debian DLA-1639-1 : systemd 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-1639-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(121316);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2018-16864", "CVE-2018-16865");

  script_name(english:"Debian DLA-1639-1 : systemd security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Multiple vulnerabilities were found in the journald component of
systemd which can lead to a crash or code execution.

CVE-2018-16864

An allocation of memory without limits, that could result in the stack
clashing with another memory region, was discovered in
systemd-journald when many entries are sent to the journal socket. A
local attacker, or a remote one if systemd-journal-remote is used, may
use this flaw to crash systemd-journald or execute code with journald
privileges.

CVE-2018-16865

An allocation of memory without limits, that could result in the stack
clashing with another memory region, was discovered in
systemd-journald when a program with long command line arguments calls
syslog. A local attacker may use this flaw to crash systemd-journald
or escalate his privileges. Versions through v240 are vulnerable.

For Debian 8 'Jessie', these problems have been fixed in version
215-17+deb8u9.

We recommend that you upgrade your systemd 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/2019/01/msg00016.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/systemd"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gir1.2-gudev-1.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgudev-1.0-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libgudev-1.0-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpam-systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-daemon-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-daemon0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-id128-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-id128-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-journal-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-journal0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-login-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd-login0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsystemd0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libudev-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libudev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libudev1-udeb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:systemd-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:systemd-sysv");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:udev-udeb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  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:"gir1.2-gudev-1.0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgudev-1.0-0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libgudev-1.0-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-systemd", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-daemon-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-daemon0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-id128-0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-id128-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-journal-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-journal0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-login-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd-login0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libsystemd0", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libudev-dev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libudev1", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"libudev1-udeb", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"python3-systemd", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"systemd", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"systemd-dbg", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"systemd-sysv", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"udev", reference:"215-17+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"udev-udeb", reference:"215-17+deb8u9")) 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");