Debian DSA-3364-1 : linux - 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-3364. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(86050);
  script_version("2.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2015-2925", "CVE-2015-5156", "CVE-2015-6252", "CVE-2015-6937", "CVE-2015-7312", "CVE-2015-8215");
  script_xref(name:"DSA", value:"3364");

  script_name(english:"Debian DSA-3364-1 : linux - 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 the Linux kernel that
may lead to a privilege escalation or denial of service.

  - CVE-2015-8215
    It was discovered that NetworkManager would set IPv6
    MTUs based on the values received in IPv6 RAs (Router
    Advertisements), without sufficiently validating these
    values. A remote attacker could exploit this attack to
    disable IPv6 connectivity. This has been mitigated by
    adding validation in the kernel.

  - CVE-2015-2925
    Jann Horn discovered that when a subdirectory of a
    filesystem is bind-mounted into a container that has its
    own user and mount namespaces, a process with
    CAP_SYS_ADMIN capability in the user namespace can
    access files outside of the subdirectory. The default
    Debian configuration mitigated this as it does not allow
    unprivileged users to create new user namespaces.

  - CVE-2015-5156
    Jason Wang discovered that when a virtio_net device is
    connected to a bridge in the same VM, a series of TCP
    packets forwarded through the bridge may cause a heap
    buffer overflow. A remote attacker could use this to
    cause a denial of service (crash) or possibly for
    privilege escalation.

  - CVE-2015-6252
    Michael S. Tsirkin of Red Hat Engineering found that the
    vhost driver leaked file descriptors passed to it with
    the VHOST_SET_LOG_FD ioctl command. A privileged local
    user with access to the /dev/vhost-net file, either
    directly or via libvirt, could use this to cause a
    denial of service (hang or crash).

  - CVE-2015-6937
    It was found that the Reliable Datagram Sockets (RDS)
    protocol implementation did not verify that an
    underlying transport exists when creating a connection.
    Depending on how a local RDS application initialised its
    sockets, a remote attacker might be able to cause a
    denial of service (crash) by sending a crafted packet.

  - CVE-2015-7312
    Xavier Chantry discovered that the patch provided by the
    aufs project to correct behaviour of memory-mapped files
    from an aufs mount introduced a race condition in the
    msync() system call. Ben Hutchings found that it also
    introduced a similar bug in the madvise_remove()
    function. A local attacker could use this to cause a
    denial of service or possibly for privilege escalation."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796036"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-8215"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-2925"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-5156"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-6252"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-6937"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-7312"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-2925"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-7312"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/linux"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2015/dsa-3364"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux packages.

For the oldstable distribution (wheezy), these problems have been
fixed in version 3.2.68-1+deb7u4. CVE-2015-2925 and CVE-2015-7312 do
not affect the wheezy distribution.

For the stable distribution (jessie), these problems have been fixed
in version 3.16.7-ckt11-1+deb8u4."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  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:linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/09/22");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"7.0", prefix:"linux", reference:"3.2.68-1+deb7u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.8-arm", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.8-x86", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-compiler-gcc-4.9-x86", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-doc-3.16", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-586", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-686-pae", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-amd64", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-armel", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-armhf", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-all-i386", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-armmp", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-armmp-lpae", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-common", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-ixp4xx", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-kirkwood", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-orion5x", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-headers-3.16.0-9-versatile", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-586", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-686-pae", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-686-pae-dbg", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-amd64-dbg", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-armmp", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-armmp-lpae", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-ixp4xx", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-kirkwood", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-orion5x", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-image-3.16.0-9-versatile", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-libc-dev", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-manual-3.16", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-source-3.16", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"linux-support-3.16.0-9", reference:"3.16.7-ckt11-1+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"xen-linux-system-3.16.0-9-amd64", reference:"3.16.7-ckt11-1+deb8u4")) 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");