SUSE SLED12 / SLES12 Security Update : ncurses (SUSE-SU-2018:0284-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0284-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(106527);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

  script_cve_id("CVE-2017-13728", "CVE-2017-13729", "CVE-2017-13730", "CVE-2017-13731", "CVE-2017-13732", "CVE-2017-13733", "CVE-2017-13734");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : ncurses (SUSE-SU-2018:0284-1)");
  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 ncurses fixes several issues. These security issues
were fixed :

  - CVE-2017-13734: Prevent illegal address access in the
    _nc_safe_strcat function in strings.c that might have
    lead to a remote denial of service attack (bsc#1056126).

  - CVE-2017-13733: Prevent illegal address access in the
    fmt_entry function in progs/dump_entry.c that might have
    lead to a remote denial of service attack (bsc#1056127).

  - CVE-2017-13732: Prevent illegal address access in the
    function dump_uses() in progs/dump_entry.c that might
    have lead to a remote denial of service attack
    (bsc#1056128).

  - CVE-2017-13731: Prevent illegal address access in the
    function postprocess_termcap() in parse_entry.c that
    might have lead to a remote denial of service attack
    (bsc#1056129).

  - CVE-2017-13730: Prevent illegal address access in the
    function _nc_read_entry_source() in progs/tic.c that
    might have lead to a remote denial of service attack
    (bsc#1056131).

  - CVE-2017-13729: Prevent illegal address access in the
    _nc_save_str function in alloc_entry.c that might have
    lead to a remote denial of service attack (bsc#1056132).

  - CVE-2017-13728: Prevent infinite loop in the next_char
    function in comp_scan.c that might have lead to a remote
    denial of service attack (bsc#1056136).

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=1056126"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056127"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056128"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056129"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056131"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056132"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1056136"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13728/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13729/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13730/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13731/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13732/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13733/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-13734/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180284-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?36382651"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-209=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2018-209=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2018-209=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-209=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-209=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2018-209=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2018-209=1

SUSE CaaS Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2018-209=1

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch
SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-209=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libncurses5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libncurses5-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libncurses6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libncurses6-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ncurses-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ncurses-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ncurses-devel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ncurses-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ncurses-utils-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tack");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tack-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:terminfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:terminfo-base");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 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:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / 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:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2/3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses5-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses5-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses5-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses5-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses6-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses6-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses6-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libncurses6-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-debugsource-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-devel-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-devel-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-devel-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-devel-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-utils-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"ncurses-utils-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"tack-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"tack-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"terminfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"terminfo-base-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses5-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses5-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses5-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses5-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses6-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses6-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses6-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libncurses6-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-debugsource-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-devel-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-devel-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-devel-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-devel-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-utils-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"ncurses-utils-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"tack-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"tack-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"terminfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"terminfo-base-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses5-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses5-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses5-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses5-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses6-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses6-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses6-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libncurses6-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ncurses-debugsource-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ncurses-devel-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ncurses-devel-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ncurses-utils-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"ncurses-utils-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"tack-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"tack-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"terminfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"terminfo-base-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses5-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses5-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses5-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses5-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses6-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses6-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses6-debuginfo-32bit-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libncurses6-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"ncurses-debugsource-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"ncurses-devel-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"ncurses-devel-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"ncurses-utils-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"ncurses-utils-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"tack-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"tack-debuginfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"terminfo-5.9-58.1")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"terminfo-base-5.9-58.1")) 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, "ncurses");
}