Debian DSA-3317-1 : lxc - security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3317. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(84993);
  script_version("2.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2015-1331", "CVE-2015-1334");
  script_xref(name:"DSA", value:"3317");

  script_name(english:"Debian DSA-3317-1 : lxc - security update");
  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:
"Several vulnerabilities have been discovered in LXC, the Linux
Containers userspace tools. The Common Vulnerabilities and Exposures
project identifies the following problems :

  - CVE-2015-1331
    Roman Fiedler discovered a directory traversal flaw in
    LXC when creating lock files. A local attacker could
    exploit this flaw to create an arbitrary file as the
    root user.

  - CVE-2015-1334
    Roman Fiedler discovered that LXC incorrectly trusted
    the container's proc filesystem to set up AppArmor
    profile changes and SELinux domain transitions. A
    malicious container could create a fake proc filesystem
    and use this flaw to run programs inside the container
    that are not confined by AppArmor or SELinux."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793298"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-1331"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-1334"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/lxc"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2015/dsa-3317"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the lxc packages.

For the stable distribution (jessie), these problems have been fixed
in version 1:1.0.6-6+deb8u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:lxc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 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:"lxc", reference:"1:1.0.6-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"lxc-dbg", reference:"1:1.0.6-6+deb8u1")) 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");