SUSE SLED15 / SLES15 Security Update : nasm (SUSE-SU-2020:1843-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2020:1843-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(138316);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/12");

  script_cve_id(
    "CVE-2018-8881",
    "CVE-2018-8882",
    "CVE-2018-8883",
    "CVE-2018-10016",
    "CVE-2018-10254",
    "CVE-2018-10316",
    "CVE-2018-16382",
    "CVE-2018-16517",
    "CVE-2018-16999",
    "CVE-2018-19214",
    "CVE-2018-19215",
    "CVE-2018-19216",
    "CVE-2018-1000667"
  );

  script_name(english:"SUSE SLED15 / SLES15 Security Update : nasm (SUSE-SU-2020:1843-1)");

  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 nasm fixes the following issues :

nasm was updated to version 2.14.02.

This allows building of Mozilla Firefox 78ESR and also contains lots
of bugfixes, security fixes and improvements.

Fix crash due to multiple errors or warnings during the code
generation pass if a list file is specified.

Create all system-defined macros defore processing command-line given
preprocessing directives (-p, -d, -u, --pragma, --before).

If debugging is enabled, define a __DEBUG_FORMAT__ predefined macro.
See section 4.11.7.

Fix an assert for the case in the obj format when a SEG operator
refers to an EXTERN symbol declared further down in the code.

Fix a corner case in the floating-point code where a binary, octal or
hexadecimal floating-point having at least 32, 11, or 8 mantissa
digits could produce slightly incorrect results under very specific
conditions.

Support -MD without a filename, for gcc compatibility. -MF can be used
to set the dependencies output filename. See section 2.1.7.

Fix -E in combination with -MD. See section 2.1.21.

Fix missing errors on redefined labels; would cause convergence
failure instead which is very slow and not easy to debug.

Duplicate definitions of the same label with the same value is now
explicitly permitted (2.14 would allow it in some circumstances.)

Add the option --no-line to ignore %line directives in the source. See
section 2.1.33 and section 4.10.1.

Changed -I option semantics by adding a trailing path separator
unconditionally.

Fixed null dereference in corrupted invalid single line macros.

Fixed division by zero which may happen if source code is malformed.

Fixed out of bound access in processing of malformed segment override.

Fixed out of bound access in certain EQU parsing.

Fixed buffer underflow in float parsing.

Added SGX (Intel Software Guard Extensions) instructions.

Added +n syntax for multiple contiguous registers.

Fixed subsections_via_symbols for macho object format.

Added the --gprefix, --gpostfix, --lprefix, and --lpostfix command
line options, to allow command line base symbol renaming. See section
2.1.28.

Allow label renaming to be specified by %pragma in addition to from
the command line. See section 6.9.

Supported generic %pragma namespaces, output and debug. See section
6.10.

Added the --pragma command line option to inject a %pragma directive.
See section 2.1.29.

Added the --before command line option to accept preprocess statement
before input. See section 2.1.30.

Added AVX512 VBMI2 (Additional Bit Manipulation), VNNI (Vector Neural
Network), BITALG (Bit Algorithm), and GFNI (Galois Field New
Instruction) instructions.

Added the STATIC directive for local symbols that should be renamed
using global-symbol rules. See section 6.8.

Allow a symbol to be defined as EXTERN and then later overridden as
GLOBAL or COMMON. Furthermore, a symbol declared EXTERN and then
defined will be treated as GLOBAL. See section 6.5.

The GLOBAL directive no longer is required to precede the definition
of the symbol.

Support private_extern as macho specific extension to the GLOBAL
directive. See section 7.8.5.

Updated UD0 encoding to match with the specification

Added the --limit-X command line option to set execution limits. See
section 2.1.31.

Updated the Codeview version number to be aligned with MASM.

Added the --keep-all command line option to preserve output files. See
section 2.1.32.

Added the --include command line option, an alias to -P (section
2.1.18).

Added the --help command line option as an alias to -h (section 3.1).

Added -W, -D, and -Q suffix aliases for RET instructions so the
operand sizes of these instructions can be encoded without using o16,
o32 or o64.

New upstream version 2.13.03 :

Add flags: AES, VAES, VPCLMULQDQ

Add VPCLMULQDQ instruction

elf: Add missing dwarf loc section

documentation updates

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=1084631");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1086186");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1086227");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1086228");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1090519");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1090840");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1106878");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1107592");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1107594");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1108404");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115758");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115774");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1115795");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1173538");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-1000667/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10016/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10254/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10316/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-16382/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-16517/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-16999/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19214/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19215/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-19216/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-8881/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-8882/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-8883/");
  # https://www.suse.com/support/update/announcement/2020/suse-su-20201843-1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?892c4a93");
  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 Module for Development Tools 15-SP2 :

zypper in -t patch
SUSE-SLE-Module-Development-Tools-15-SP2-2020-1843=1

SUSE Linux Enterprise Module for Development Tools 15-SP1 :

zypper in -t patch
SUSE-SLE-Module-Development-Tools-15-SP1-2020-1843=1");
  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: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:"cvss_score_source", value:"CVE-2018-8881");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-8883");

  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:"2018/03/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/07/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/07/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nasm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nasm-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nasm-debugsource");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "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 == "SLES15" && (! preg(pattern:"^(1|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP1/2", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(1|2)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP1/2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"1", reference:"nasm-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"nasm-debuginfo-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"1", reference:"nasm-debugsource-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"nasm-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"nasm-debuginfo-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLES15", sp:"2", reference:"nasm-debugsource-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nasm-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nasm-debuginfo-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"1", reference:"nasm-debugsource-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"nasm-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"nasm-debuginfo-2.14.02-3.4.1")) flag++;
if (rpm_check(release:"SLED15", sp:"2", reference:"nasm-debugsource-2.14.02-3.4.1")) 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, "nasm");
}