SUSE SLES12 Security Update : glibc (SUSE-SU-2017:1611-1) (Stack Clash)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:1611-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(100911);
  script_version("3.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2017-1000366");

  script_name(english:"SUSE SLES12 Security Update : glibc (SUSE-SU-2017:1611-1) (Stack Clash)");
  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 issues :

  - CVE-2017-1000366: Fix a potential privilege escalation
    vulnerability that allowed unprivileged system users to
    manipulate the stack of setuid binaries to gain special
    privileges. [bsc#1039357]

  - The incorrectly defined constant O_TMPFILE has been
    fixed. [bsc#1038690]

  - A defect in glibc's regression test suite has been
    remedied to avoid false positives. [bsc#987216]

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=1038690"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1039357"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=987216"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-1000366/"
  );
  # https://www.suse.com/support/update/announcement/2017/suse-su-20171611-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?b7ee6045"
  );
  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 Server for SAP 12:zypper in -t patch
SUSE-SLE-SAP-12-2017-988=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2017-988=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  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:"exploited_by_malware", 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-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-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-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: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:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/06/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/06/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/20");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-debuginfo-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-debugsource-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-devel-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-devel-debuginfo-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-locale-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-locale-debuginfo-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-profile-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"nscd-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"nscd-debuginfo-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-debuginfo-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-devel-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-devel-debuginfo-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-locale-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-locale-debuginfo-32bit-2.19-22.21.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"glibc-profile-32bit-2.19-22.21.1")) 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");
}