Debian DLA-1486-1 : spice security update

2018-09-04T00:00:00
ID DEBIAN_DLA-1486.NASL
Type nessus
Reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-05-02T00:00:00

Description

A vulnerability was discovered in SPICE before version 0.14.1 where the generated code used for demarshalling messages lacked sufficient bounds checks. A malicious client or server, after authentication, could send specially crafted messages to its peer which would result in a crash or, potentially, other impacts.

The issue has been fixed by upstream by bailing out with an error if the pointer to the start of some message data is strictly greater than the pointer to the end of the message data.

For Debian 8

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1486-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(112225);
  script_version("1.2");
  script_cvs_date("Date: 2018/10/11 12:15:06");

  script_cve_id("CVE-2018-10873");

  script_name(english:"Debian DLA-1486-1 : spice security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability was discovered in SPICE before version 0.14.1 where
the generated code used for demarshalling messages lacked sufficient
bounds checks. A malicious client or server, after authentication,
could send specially crafted messages to its peer which would result
in a crash or, potentially, other impacts.

The issue has been fixed by upstream by bailing out with an error if
the pointer to the start of some message data is strictly greater than
the pointer to the end of the message data.

For Debian 8 'Jessie', this problem has been fixed in version
0.12.5-1+deb8u6.

We recommend that you upgrade your spice packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2018/08/msg00037.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/spice"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libspice-server-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libspice-server1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libspice-server1-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:spice-client");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/04");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018 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:"8.0", prefix:"libspice-server-dev", reference:"0.12.5-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libspice-server1", reference:"0.12.5-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"libspice-server1-dbg", reference:"0.12.5-1+deb8u6")) flag++;
if (deb_check(release:"8.0", prefix:"spice-client", reference:"0.12.5-1+deb8u6")) 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");