SUSE SLED11 / SLES11 Security Update : krb5 (SUSE-SU-2015:1898-1)

2015-11-05T00:00:00
ID SUSE_SU-2015-1898-1.NASL
Type nessus
Reporter Tenable
Modified 2018-07-31T00:00:00

Description

krb5 was updated to fix one security issue.

This security issue was fixed :

  • CVE-2015-2695: Applications which call gss_inquire_context() on a partially-established SPNEGO context could have caused the GSS-API library to read from a pointer using the wrong type, generally causing a process crash (bsc#952188).

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:1898-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(86755);
  script_version("2.4");
  script_cvs_date("Date: 2018/07/31 17:27:54");

  script_cve_id("CVE-2015-2695");

  script_name(english:"SUSE SLED11 / SLES11 Security Update : krb5 (SUSE-SU-2015:1898-1)");
  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:
"krb5 was updated to fix one security issue.

This security issue was fixed :

  - CVE-2015-2695: Applications which call
    gss_inquire_context() on a partially-established SPNEGO
    context could have caused the GSS-API library to read
    from a pointer using the wrong type, generally causing a
    process crash (bsc#952188).

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/952188"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-2695.html"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20151898-1.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?a314f671"
  );
  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 11-SP4 :

zypper in -t patch sdksp4-krb5-12185=1

SUSE Linux Enterprise Software Development Kit 11-SP3 :

zypper in -t patch sdksp3-krb5-12185=1

SUSE Linux Enterprise Server for VMWare 11-SP3 :

zypper in -t patch slessp3-krb5-12185=1

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-krb5-12185=1

SUSE Linux Enterprise Server 11-SP3 :

zypper in -t patch slessp3-krb5-12185=1

SUSE Linux Enterprise Desktop 11-SP4 :

zypper in -t patch sledsp4-krb5-12185=1

SUSE Linux Enterprise Desktop 11-SP3 :

zypper in -t patch sledsp3-krb5-12185=1

SUSE Linux Enterprise Debuginfo 11-SP4 :

zypper in -t patch dbgsp4-krb5-12185=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:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/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:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-apps-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-apps-servers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-kdb-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-plugin-preauth-pkinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/10/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/11/05");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
  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 = eregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! ereg(pattern:"^(SLED11|SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED11 / SLES11", "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 == "SLES11" && (! ereg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP3/4", os_ver + " SP" + sp);
if (os_ver == "SLED11" && (! ereg(pattern:"^(3|4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED11 SP3/4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES11", sp:"4", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", cpu:"s390x", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-apps-clients-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-apps-servers-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-client-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-plugin-kdb-ldap-1.6.3-133.49.97.3")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-plugin-preauth-pkinit-1.6.3-133.49.97.3")) flag++;
if (rpm_check(release:"SLES11", sp:"4", reference:"krb5-server-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", cpu:"s390x", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-apps-clients-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-apps-servers-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-client-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-plugin-kdb-ldap-1.6.3-133.49.97.3")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-plugin-preauth-pkinit-1.6.3-133.49.97.3")) flag++;
if (rpm_check(release:"SLES11", sp:"3", reference:"krb5-server-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-client-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"4", cpu:"i586", reference:"krb5-client-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"x86_64", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"x86_64", reference:"krb5-client-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"x86_64", reference:"krb5-32bit-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"i586", reference:"krb5-1.6.3-133.49.97.1")) flag++;
if (rpm_check(release:"SLED11", sp:"3", cpu:"i586", reference:"krb5-client-1.6.3-133.49.97.1")) 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, "krb5");
}