Mandriva Linux Security Advisory : stunnel (MDVSA-2013:130)

2013-04-20T00:00:00
ID MANDRIVA_MDVSA-2013-130.NASL
Type nessus
Reporter Tenable
Modified 2014-04-20T00:00:00

Description

Updated stunnel packages fix security vulnerability :

stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow (CVE-2013-1762).

The updated packages also fixes the following :

  • move library subpackages back into main stunnel package

    • add a systemd unit file (partially fixing Bug 3951)

    • fix issues with stunnel.conf and stunnel.pem, with stunnel running in a chroot environment.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2013:130. 
# The text itself is copyright (C) Mandriva S.A.
#

include("compat.inc");

if (description)
{
  script_id(66142);
  script_version("$Revision: 1.12 $");
  script_cvs_date("$Date: 2014/04/20 04:29:52 $");

  script_cve_id("CVE-2013-1762");
  script_bugtraq_id(58277);
  script_xref(name:"MDVSA", value:"2013:130");
  script_xref(name:"MGASA", value:"2013-0097");

  script_name(english:"Mandriva Linux Security Advisory : stunnel (MDVSA-2013:130)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Mandriva Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated stunnel packages fix security vulnerability :

stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM
authentication are enabled, does not correctly perform integer
conversion, which allows remote proxy servers to execute arbitrary
code via a crafted request that triggers a buffer overflow
(CVE-2013-1762).

The updated packages also fixes the following :

  - move library subpackages back into main stunnel package

    - add a systemd unit file (partially fixing Bug 3951)

    - fix issues with stunnel.conf and stunnel.pem, with
      stunnel running in a chroot environment."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://wiki.mageia.org/en/Support/Advisories/MGAA-2012-0196"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected stunnel package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:stunnel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:business_server:1");

  script_set_attribute(attribute:"patch_publication_date", value:"2013/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/04/20");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2014 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:"stunnel-4.55-1.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");