SUSE SLED15 / SLES15 Security Update : glibc (SUSE-SU-2018:1991-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:1991-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(120053);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

  script_cve_id("CVE-2017-18269", "CVE-2018-11236", "CVE-2018-11237");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : glibc (SUSE-SU-2018:1991-1)");
  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 glibc fixes the following security issues :

  - CVE-2017-18269: An SSE2-optimized memmove implementation
    for i386 did not correctly perform the overlapping
    memory check if the source memory range spaned the
    middle of the address space, resulting in corrupt data
    being produced by the copy operation. This may have
    disclosed information to context-dependent attackers,
    resulted in a denial of service or code execution
    (bsc#1094150).

  - CVE-2018-11236: Prevent integer overflow on 32-bit
    architectures when processing very long pathname
    arguments to the realpath function, leading to a
    stack-based buffer overflow (bsc#1094161).

  - CVE-2018-11237: An AVX-512-optimized implementation of
    the mempcpy function may have writen data beyond the
    target buffer, leading to a buffer overflow in
    __mempcpy_avx512_no_vzeroupper (bsc#1092877,
    bsc#1094154).

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=1082318"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1092877"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094150"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094154"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1094161"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18269/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-11236/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-11237/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20181991-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?cd58eaf3"
  );
  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:zypper in -t
patch SUSE-SLE-Module-Development-Tools-15-2018-1346=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2018-1346=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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:novell:suse_linux:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-devel-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-devel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-extra-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-locale");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-locale-32bit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-locale-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-profile");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-utils-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:glibc-utils-src-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nscd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:nscd-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/02");
  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:"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:"^(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:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-devel-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-devel-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-locale-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"glibc-locale-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-debugsource-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-devel-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-devel-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-devel-static-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-extra-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-extra-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-locale-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-locale-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-profile-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-utils-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-utils-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"glibc-utils-src-debugsource-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"nscd-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", reference:"nscd-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-devel-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-devel-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-locale-32bit-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"glibc-locale-32bit-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-debugsource-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-devel-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-devel-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-devel-static-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-extra-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-extra-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-locale-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-locale-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-profile-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-utils-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-utils-debuginfo-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"glibc-utils-src-debugsource-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"nscd-2.26-13.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", reference:"nscd-debuginfo-2.26-13.3.1")) flag++;


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