SUSE SLES12 Security Update : systemd (SUSE-SU-2020:1842-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:1842-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(138315);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

  script_cve_id("CVE-2019-20386");

  script_name(english:"SUSE SLES12 Security Update : systemd (SUSE-SU-2020:1842-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description",
    value:
"This update for systemd fixes the following issues :

CVE-2019-20386: Fixed a memory leak when executing the udevadm trigger
command (bsc#1161436).

Renamed the persistent link for ATA devices (bsc#1164538)

shared/install: try harder to find enablement symlinks when disabling
a unit (bsc#1157315)

tmpfiles: removed unnecessary assert (bsc#1171145)

pid1: by default make user units inherit their umask from the user
manager (bsc#1162698)

manager: fixed job mode when signalled to shutdown etc (bsc#1161262)

coredump: fixed bug that loses core dump files when core dumps are
compressed and disk space is low. (bsc#1167622)

udev: inform systemd how many workers we can potentially spawn (#4036)
(bsc#1165633)

libblkid: open device in nonblock mode. (bsc#1084671)

udev/cdrom_id: Do not open CD-rom in exclusive mode. (bsc#1154256)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1084671"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1154256"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1157315"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1161262"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1161436"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1162698"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1164538"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1165633"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1167622"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1171145"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-20386/"
  );
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201842-1
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8f090989"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP4 :

zypper in -t patch SUSE-SLE-SDK-12-SP4-2020-1842=1

SUSE Linux Enterprise Server 12-SP4 :

zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1842=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2019-20386");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libudev1-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:systemd-sysvinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:udev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:udev-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-debuginfo-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libsystemd0-debuginfo-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev-devel-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-debuginfo-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"libudev1-debuginfo-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debuginfo-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debuginfo-32bit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-debugsource-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-devel-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"systemd-sysvinit-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"udev-228-150.86.3")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"udev-debuginfo-228-150.86.3")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "systemd");
}