Debian DLA-439-1 : linux-2.6 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 DLA-439-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(89040);
  script_version("2.13");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2015-8812", "CVE-2016-0774", "CVE-2016-2384");

  script_name(english:"Debian DLA-439-1 : linux-2.6 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:
"This update fixes the CVEs described below.

CVE-2015-8812

A flaw was found in the iw_cxgb3 Infiniband driver. Whenever it could
not send a packet because the network was congested, it would free the
packet buffer but later attempt to send the packet again. This
use-after-free could result in a denial of service (crash or hang),
data loss or privilege escalation.

CVE-2016-0774

It was found that the fix for CVE-2015-1805 in kernel versions older
than Linux 3.16 did not correctly handle the case of a partially
failed atomic read. A local, unprivileged user could use this flaw to
crash the system or leak kernel memory to user space.

CVE-2016-2384

Andrey Konovalov found that a USB MIDI device with an invalid USB
descriptor could trigger a double-free. This may be used by a
physically present user for privilege escalation.

Additionally, it fixes some old security issues with no CVE ID :

Several kernel APIs permitted reading or writing 2 GiB of data or more
in a single chunk, which could lead to an integer overflow when
applied to certain filesystems, socket or device types. The full
security impact has not been evaluated.

Finally, it fixes a regression in 2.6.32-48squeeze17 that would cause
Samba to hang in some situations.

For the oldoldstable distribution (squeeze), these problems have been
fixed in version 2.6.32-48squeeze20. This is *really* the final update
to the linux-2.6 package for squeeze.

For the oldstable distribution (wheezy), the kernel was not affected
by the integer overflow issues and the remaining problems will be
fixed in version 3.2.73-2+deb7u3.

For the stable distribution (jessie), the kernel was not affected by
the integer overflow issues or CVE-2016-0774, and the remaining
problems will be fixed in version 3.16.7-ckt20-1+deb8u4.

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/2016/02/msg00036.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/linux-2.6"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:firmware-linux-free");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-doc-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-486");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-686-bigmem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-all");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-all-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-all-i386");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-common-openvz");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-common-vserver");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-common-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-openvz-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-openvz-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-vserver-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-vserver-686-bigmem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-vserver-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-xen-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-headers-2.6.32-5-xen-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-486");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-686-bigmem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-686-bigmem-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-openvz-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-openvz-686-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-openvz-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-openvz-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-vserver-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-vserver-686-bigmem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-vserver-686-bigmem-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-vserver-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-vserver-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-xen-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-xen-686-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-xen-amd64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-image-2.6.32-5-xen-amd64-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-libc-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-manual-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-patch-debian-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-source-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-support-2.6.32-5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux-tools-2.6.32");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-linux-system-2.6.32-5-xen-686");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen-linux-system-2.6.32-5-xen-amd64");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2021 Tenable Network Security, Inc.");
  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:"firmware-linux-free", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-base", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-doc-2.6.32", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-486", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-686-bigmem", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-i386", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-openvz", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-vserver", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-xen", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-openvz-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-openvz-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-686-bigmem", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-xen-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-486", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686-bigmem", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686-bigmem-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-amd64-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-686-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-amd64-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686-bigmem", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686-bigmem-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-amd64-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-686-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-amd64-dbg", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-libc-dev", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-manual-2.6.32", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-patch-debian-2.6.32", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-source-2.6.32", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-support-2.6.32-5", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"linux-tools-2.6.32", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"xen-linux-system-2.6.32-5-xen-686", reference:"2.6.32-48squeeze20")) flag++;
if (deb_check(release:"6.0", prefix:"xen-linux-system-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze20")) flag++;

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