Vulnerabilities > CVE-2006-5111 - Denial of Service vulnerability in Libksba Library Libksba Library 0.9.12

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandrake Linux Security Advisory MDKSA-2006:183. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(24568);
  script_version ("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:48");

  script_cve_id("CVE-2006-5111");
  script_xref(name:"MDKSA", value:"2006:183");

  script_name(english:"Mandrake Linux Security Advisory : libksba (MDKSA-2006:183)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandrake Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The libksba library, as used by gpgsm in the gnupg2 package, allows
attackers to cause a denial of service (application crash) via a
malformed X.509 certificate in a signature.

libksba-0.9.15 in Mandriva 2007.0 is not affected by this issue.

Updated packages have been patched to correct this issue."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64ksba8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64ksba8-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libksba8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libksba8-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2006");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/10/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/02/18");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2007-2019 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2006.0", cpu:"x86_64", reference:"lib64ksba8-0.9.11-2.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"x86_64", reference:"lib64ksba8-devel-0.9.11-2.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"i386", reference:"libksba8-0.9.11-2.1.20060mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK2006.0", cpu:"i386", reference:"libksba8-devel-0.9.11-2.1.20060mdk", yank:"mdk")) flag++;


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

#%NASL_MIN_LEVEL 80502

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-365-1. 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(27945);
  script_version("1.14");
  script_cvs_date("Date: 2019/08/02 13:33:01");

  script_cve_id("CVE-2006-5111");
  script_xref(name:"USN", value:"365-1");

  script_name(english:"Ubuntu 5.04 : libksba vulnerability (USN-365-1)");
  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:
"A parsing failure was discovered in the handling of X.509 certificates
that contained extra trailing data. Malformed or malicious
certificates could cause services using libksba to crash, potentially
creating 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:"solution", 
    value:"Update the affected libksba-dev and / or libksba8 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libksba-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libksba8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/10/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/11/10");
  script_set_attribute(attribute:"vuln_publication_date", value:"2006/09/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2006-2019 Canonical, Inc. / NASL script (C) 2007-2016 Tenable Network Security, Inc.");
  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 (! ereg(pattern:"^(5\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 5.04", "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:"5.04", pkgname:"libksba-dev", pkgver:"0.9.9-2ubuntu0.5.04")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libksba8", pkgver:"0.9.9-2ubuntu0.5.04")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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, "libksba-dev / libksba8");
}