Ubuntu 9.10 / 10.04 LTS / 10.10 : krb5 vulnerability (USN-1088-1)

2011-03-16T00:00:00
ID UBUNTU_USN-1088-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-04-02T00:00:00

Description

Cameron Meadors discovered that the MIT Kerberos 5 Key Distribution Center (KDC) daemon is vulnerable to a double-free condition if the Public Key Cryptography for Initial Authentication (PKINIT) capability is enabled. This could allow a remote attacker to cause a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 Ubuntu Security Notice USN-1088-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(52682);
  script_version("1.15");
  script_cvs_date("Date: 2019/09/19 12:54:26");

  script_cve_id("CVE-2011-0284");
  script_bugtraq_id(46881);
  script_xref(name:"USN", value:"1088-1");

  script_name(english:"Ubuntu 9.10 / 10.04 LTS / 10.10 : krb5 vulnerability (USN-1088-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Cameron Meadors discovered that the MIT Kerberos 5 Key Distribution
Center (KDC) daemon is vulnerable to a double-free condition if the
Public Key Cryptography for Initial Authentication (PKINIT) capability
is enabled. This could allow a remote attacker to cause a denial of
service.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/1088-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/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:canonical:ubuntu_linux:krb5-admin-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-ftpd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-kdc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-kdc-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-multidev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-pkinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-rsh-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-telnetd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:krb5-user");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgssapi-krb5-2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libgssrpc4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libk5crypto3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkadm5clnt-mit7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkadm5clnt6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkadm5srv-mit7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkadm5srv6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkdb5-4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5-3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libkrb5support0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:9.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/03/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/03/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/03/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2011-2019 Canonical, Inc. / NASL script (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(9\.10|10\.04|10\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 9.10 / 10.04 / 10.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"9.10", pkgname:"krb5-admin-server", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-clients", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-doc", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-ftpd", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-kdc", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-kdc-ldap", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-pkinit", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-rsh-server", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-telnetd", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"krb5-user", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libgssapi-krb5-2", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libgssrpc4", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libk5crypto3", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkadm5clnt6", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkadm5srv6", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkdb5-4", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkrb5-3", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkrb5-dbg", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkrb5-dev", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"9.10", pkgname:"libkrb5support0", pkgver:"1.7dfsg~beta3-1ubuntu0.12")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-admin-server", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-doc", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-kdc", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-kdc-ldap", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-multidev", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-pkinit", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"krb5-user", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libgssapi-krb5-2", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libgssrpc4", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libk5crypto3", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkadm5clnt-mit7", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkadm5srv-mit7", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkdb5-4", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkrb5-3", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkrb5-dbg", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkrb5-dev", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.04", pkgname:"libkrb5support0", pkgver:"1.8.1+dfsg-2ubuntu0.8")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-admin-server", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-doc", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-kdc", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-kdc-ldap", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-multidev", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-pkinit", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"krb5-user", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libgssapi-krb5-2", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libgssrpc4", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libk5crypto3", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkadm5clnt-mit7", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkadm5srv-mit7", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkdb5-4", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkrb5-3", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkrb5-dbg", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkrb5-dev", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libkrb5support0", pkgver:"1.8.1+dfsg-5ubuntu0.6")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5-admin-server / krb5-clients / krb5-doc / krb5-ftpd / krb5-kdc / etc");
}