Debian DSA-2576-1 : trousers - denial of service

2012-11-26T00:00:00
ID DEBIAN_DSA-2576.NASL
Type nessus
Reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2012-11-26T00:00:00

Description

Andy Lutomirski discovered that tcsd (the TPM userspace daemon) was missing input validation. Using carefully crafted input, it can lead to a denial of service by making the daemon crash with a segmentation fault.

                                        
                                            #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2576. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(63028);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2012-0698");
  script_bugtraq_id(55459);
  script_xref(name:"DSA", value:"2576");

  script_name(english:"Debian DSA-2576-1 : trousers - denial of service");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Andy Lutomirski discovered that tcsd (the TPM userspace daemon) was
missing input validation. Using carefully crafted input, it can lead
to a denial of service by making the daemon crash with a segmentation
fault."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692649"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/trousers"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2012/dsa-2576"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the trousers packages.

For the stable distribution (squeeze), this problem has been fixed in
version 0.3.5-2+squeeze1."
  );
  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:debian:debian_linux:trousers");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/11/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/11/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libtspi-dev", reference:"0.3.5-2+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"libtspi1", reference:"0.3.5-2+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"trousers", reference:"0.3.5-2+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"trousers-dbg", reference:"0.3.5-2+squeeze1")) flag++;

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