Mandriva Linux Security Advisory : gnupg (MDVSA-2013:247)

#%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-2013:247. 
# The text itself is copyright (C) Mandriva S.A.
#

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

if (description)
{
  script_id(70383);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2013-4351", "CVE-2013-4402");
  script_xref(name:"MDVSA", value:"2013:247");

  script_name(english:"Mandriva Linux Security Advisory : gnupg (MDVSA-2013:247)");
  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:
"Multiple vulnerabilities has been discovered and corrected in gnupg :

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all
bits cleared (no usage permitted) as if it has all bits set (all usage
permitted), which might allow remote attackers to bypass intended
cryptographic protection mechanisms by leveraging the subkey
(CVE-2013-4351).

Special crafted input data may be used to cause a denial of service
against GPG. GPG can be forced to recursively parse certain parts of
OpenPGP messages ad infinitum (CVE-2013-4402).

The updated packages have been patched to correct this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2013-0299.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://advisories.mageia.org/MGASA-2013-0303.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://lists.gnu.org/archive/html/info-gnu/2013-10/msg00002.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://lists.gnu.org/archive/html/info-gnu/2013-10/msg00003.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected gnupg and / or gnupg2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:gnupg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:gnupg2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/10/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/10/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 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:"MDK-MBS1", cpu:"x86_64", reference:"gnupg-1.4.12-3.2.mbs1")) flag++;
if (rpm_check(release:"MDK-MBS1", cpu:"x86_64", reference:"gnupg2-2.0.18-3.2.mbs1")) 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");