CentOS 6 : glibc (CESA-2018:1879)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1879 and 
# CentOS Errata and Security Advisory 2018:1879 respectively.
#

include("compat.inc");

if (description)
{
  script_id(110648);
  script_version("1.4");
  script_cvs_date("Date: 2018/06/25 14:18:43");

  script_cve_id("CVE-2017-15670", "CVE-2017-15804");
  script_xref(name:"RHSA", value:"2018:1879");

  script_name(english:"CentOS 6 : glibc (CESA-2018:1879)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for glibc is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security
impact of Moderate. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The glibc packages provide the standard C libraries (libc), POSIX
thread libraries (libpthread), standard math libraries (libm), and the
name service cache daemon (nscd) used by multiple programs on the
system. Without these libraries, the Linux system cannot function
correctly.

Security Fix(es) :

* glibc: Buffer overflow in glob with GLOB_TILDE (CVE-2017-15670)

* glibc: Buffer overflow during unescaping of user names with the ~
operator (CVE-2017-15804)

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10
Technical Notes linked from the References section."
  );
  # http://lists.centos.org/pipermail/centos-cr-announce/2018-June/005253.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?2fc0ef92"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected glibc packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:glibc-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:nscd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:6");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/22");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

# Temp disable
exit(0, 'Temporarily disabled.');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/CentOS/release")) audit(AUDIT_OS_NOT, "CentOS");
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


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


flag = 0;
if (rpm_check(release:"CentOS-6", reference:"glibc-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"glibc-common-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"glibc-devel-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"glibc-headers-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"glibc-static-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"glibc-utils-2.12-1.212.el6")) flag++;
if (rpm_check(release:"CentOS-6", reference:"nscd-2.12-1.212.el6")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");