Debian DSA-4078-1 : linux - security update (Meltdown)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4078. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(105595);
  script_version("3.13");
  script_cvs_date("Date: 2019/07/15 14:20:30");

  script_cve_id("CVE-2017-5754");
  script_xref(name:"DSA", value:"4078");
  script_xref(name:"IAVA", value:"2018-A-0019");

  script_name(english:"Debian DSA-4078-1 : linux - security update (Meltdown)");
  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:
"Multiple researchers have discovered a vulnerability in Intel
processors, enabling an attacker controlling an unprivileged process
to read memory from arbitrary addresses, including from the kernel and
all other processes running on the system.

This specific attack has been named Meltdown and is addressed in the
Linux kernel for the Intel x86-64 architecture by a patch set named
Kernel Page Table Isolation, enforcing a near complete separation of
the kernel and userspace address maps and preventing the attack. This
solution might have a performance impact, and can be disabled at boot
time by passing pti=off to the kernel command line.

We also identified a regression for ancient userspaces using the
vsyscall interface, for example chroot and containers using (e)glibc
2.13 and older, including those based on Debian 7 or RHEL/CentOS 6.
This regression will be fixed in a later update.

The other vulnerabilities (named Spectre) published at the same time
are not addressed in this update and will be fixed in a later update."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/linux"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/linux"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2018/dsa-4078"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux packages.

For the oldstable distribution (jessie), this problem will be fixed in
a separate update.

For the stable distribution (stretch), this problem has been fixed in
version 4.9.65-3+deb9u2."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
  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:linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/05");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 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:"9.0", prefix:"hyperv-daemons", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower-dev", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower1", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"libusbip-dev", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-arm", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-s390", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-x86", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-cpupower", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-doc-4.9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-4kc-malta", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-5kc-malta", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686-pae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-amd64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-arm64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armel", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armhf", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-i386", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips64el", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mipsel", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-ppc64el", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-s390x", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-amd64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-arm64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp-lpae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common-rt", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-loongson-3", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-marvell", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-octeon", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-powerpc64le", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-686-pae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-amd64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-s390x", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x-dbg", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-kbuild-4.9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-libc-dev", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-manual-4.9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-perf-4.9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-source-4.9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"linux-support-4.9.0-9", reference:"4.9.65-3+deb9u2")) flag++;
if (deb_check(release:"9.0", prefix:"usbip", reference:"4.9.65-3+deb9u2")) 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");