Mandriva Linux Security Advisory : libtasn1 (MDVSA-2012:039)

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2012:039. 
# The text itself is copyright (C) Mandriva S.A.
#

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

if (description)
{
  script_id(58491);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2012-1569");
  script_bugtraq_id(52668);
  script_xref(name:"MDVSA", value:"2012:039");

  script_name(english:"Mandriva Linux Security Advisory : libtasn1 (MDVSA-2012:039)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability has been found and corrected in libtasn1 :

The asn1_get_length_der function in decoding.c in GNU Libtasn1 before
2.12, as used in GnuTLS before 3.0.16 and other products, does not
properly handle certain large length values, which allows remote
attackers to cause a denial of service (heap memory corruption and
application crash) or possibly have unspecified other impact via a
crafted ASN.1 structure (CVE-2012-1569).

The 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_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64tasn1-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64tasn1_3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libtasn1-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libtasn1-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libtasn1_3");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2011");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/03/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2021 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:"MDK2010.1", cpu:"x86_64", reference:"lib64tasn1-devel-2.6-2.1mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"x86_64", reference:"lib64tasn1_3-2.6-2.1mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libtasn1-devel-2.6-2.1mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", reference:"libtasn1-tools-2.6-2.1mdv2010.2", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.1", cpu:"i386", reference:"libtasn1_3-2.6-2.1mdv2010.2", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64tasn1-devel-2.9-2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64tasn1_3-2.9-2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libtasn1-devel-2.9-2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"libtasn1-tools-2.9-2.1-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libtasn1_3-2.9-2.1-mdv2011.0", yank:"mdv")) 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");