Debian DSA-4279-1 : linux - security update (Foreshadow)

2018-08-20T00:00:00
ID DEBIAN_DSA-4279.NASL
Type nessus
Reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-05-02T00:00:00

Description

Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary (non-user controlled) addresses, including from the kernel and all other processes running on the system or cross guest/host boundaries to read host memory.

To fully resolve these vulnerabilities it is also necessary to install updated CPU microcode (only available in Debian non-free). Common server class CPUs are covered in the update released as DSA 4273-1.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4279. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(111988);
  script_version("1.5");
  script_cvs_date("Date: 2019/07/15 14:20:30");

  script_cve_id("CVE-2018-3620", "CVE-2018-3646");
  script_xref(name:"DSA", value:"4279");

  script_name(english:"Debian DSA-4279-1 : linux - security update (Foreshadow)");
  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 the way the
Intel processor designs have implemented speculative execution of
instructions in combination with handling of page-faults. This flaw
could allow an attacker controlling an unprivileged process to read
memory from arbitrary (non-user controlled) addresses, including from
the kernel and all other processes running on the system or cross
guest/host boundaries to read host memory.

To fully resolve these vulnerabilities it is also necessary to install
updated CPU microcode (only available in Debian non-free). Common
server class CPUs are covered in the update released as DSA 4273-1."
  );
  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-4279"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux packages.

For the stable distribution (stretch), these problems have been fixed
in version 4.9.110-3+deb9u3."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
  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_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:"2018/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/20");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower-dev", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower1", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"libusbip-dev", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-arm", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-s390", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-x86", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-cpupower", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-doc-4.9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-4kc-malta", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-5kc-malta", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686-pae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-amd64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-arm64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armel", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armhf", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-i386", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips64el", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mipsel", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-ppc64el", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-s390x", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-amd64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-arm64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp-lpae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common-rt", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-loongson-3", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-marvell", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-octeon", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-powerpc64le", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-686-pae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-amd64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-s390x", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x-dbg", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-kbuild-4.9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-libc-dev", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-manual-4.9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-perf-4.9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-source-4.9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"linux-support-4.9.0-9", reference:"4.9.110-3+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"usbip", reference:"4.9.110-3+deb9u3")) 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");