Debian Security Advisory DSA 4495-1 (linux - security update)

# Copyright (C) 2019 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.704495");
  script_version("2019-08-13T22:56:08+0000");
  script_cve_id("CVE-2018-20836", "CVE-2019-10207", "CVE-2019-10638", "CVE-2019-1125", "CVE-2019-12817", "CVE-2019-12984", "CVE-2019-13233", "CVE-2019-13631", "CVE-2019-13648", "CVE-2019-14283", "CVE-2019-14284", "CVE-2019-1999");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2019-08-13 22:56:08 +0000 (Tue, 13 Aug 2019)");
  script_tag(name:"creation_date", value:"2019-08-12 02:00:28 +0000 (Mon, 12 Aug 2019)");
  script_name("Debian Security Advisory DSA 4495-1 (linux - security update)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB10");

  script_xref(name:"URL", value:"https://www.debian.org/security/2019/dsa-4495.html");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4495-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux'
  package(s) announced via the DSA-4495-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

CVE-2018-20836
chenxiang reported a race condition in libsas, the kernel
subsystem supporting Serial Attached SCSI (SAS) devices, which
could lead to a use-after-free. It is not clear how this might be
exploited.

CVE-2019-1125
It was discovered that most x86 processors could speculatively
skip a conditional SWAPGS instruction used when entering the
kernel from user mode, and/or could speculatively execute it when
it should be skipped. This is a subtype of Spectre variant 1,
which could allow local users to obtain sensitive information from
the kernel or other processes. It has been mitigated by using
memory barriers to limit speculative execution. Systems using an
i386 kernel are not affected as the kernel does not use SWAPGS.

CVE-2019-1999
A race condition was discovered in the Android binder driver,
which could lead to a use-after-free. If this driver is loaded, a
local user might be able to use this for denial-of-service
(memory corruption) or for privilege escalation.

CVE-2019-10207
The syzkaller tool found a potential null dereference in various
drivers for UART-attached Bluetooth adapters. A local user with
access to a pty device or other suitable tty device could use this
for denial-of-service (BUG/oops).

CVE-2019-10638Amit Klein and Benny Pinkas discovered that the generation of IP
packet IDs used a weak hash function, jhash. This could enable
tracking individual computers as they communicate with different
remote servers and from different networks. The siphash

function is now used instead.

CVE-2019-12817
It was discovered that on the PowerPC (ppc64el) architecture, the
hash page table (HPT) code did not correctly handle fork() in a
process with memory mapped at addresses above 512 TiB. This could
lead to a use-after-free in the kernel, or unintended sharing of
memory between user processes. A local user could use this for
privilege escalation. Systems using the radix MMU, or a custom
kernel with a 4 KiB page size, are not affected.

CVE-2019-12984
It was discovered that the NFC protocol implementation did not
properly validate a netlink control message, potentially leading
to a null pointer dereference. A local user on a system with an
NFC interface could use this for denial-of-service (BUG/oops).

CVE-2019-13233
Jann Horn discovered a race condition on the x86 architecture,
in use of the LDT. This could lead to a use-after-free. A
local user could possibly use this for denial-of-service.

CVE-2019-13631
It was discovered that the gtco driver f ...

  Description truncated. Please see the references for more information.");

  script_tag(name:"affected", value:"'linux' package(s) on Debian Linux.");

  script_tag(name:"solution", value:"For the stable distribution (buster), these problems have been fixed in
version 4.19.37-5+deb10u2.

For the oldstable distribution (stretch), these problems will be fixed
soon.

We recommend that you upgrade your linux packages.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

res = "";
report = "";
if(!isnull(res = isdpkgvuln(pkg:"hyperv-daemons", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libbpf-dev", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libbpf4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcpupower-dev", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libcpupower1", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"liblockdep-dev", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"liblockdep4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-compiler-gcc-8-arm", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-compiler-gcc-8-s390", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-compiler-gcc-8-x86", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-config-4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-cpupower", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-doc-4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-4kc-malta", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-5kc-malta", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-686", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-686-pae", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-amd64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-arm64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-armel", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-armhf", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-i386", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-mips", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-mips64el", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-mipsel", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-ppc64el", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-all-s390x", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-amd64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-arm64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-armmp", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-armmp-lpae", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-cloud-amd64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-common", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-common-rt", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-loongson-3", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-marvell", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-octeon", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-powerpc64le", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-rpi", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-rt-686-pae", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-rt-amd64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-rt-arm64", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-rt-armmp", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-headers-4.19.0-5-s390x", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-4kc-malta", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-4kc-malta-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-5kc-malta", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-5kc-malta-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-686-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-686-pae-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-686-pae-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-686-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-amd64-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-amd64-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-arm64-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-arm64-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-armmp", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-armmp-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-armmp-lpae", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-armmp-lpae-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-cloud-amd64-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-cloud-amd64-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-loongson-3", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-loongson-3-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-marvell", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-marvell-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-octeon", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-octeon-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-powerpc64le", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-powerpc64le-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rpi", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rpi-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-686-pae-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-686-pae-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-amd64-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-amd64-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-arm64-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-arm64-unsigned", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-armmp", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-rt-armmp-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-s390x", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.19.0-5-s390x-dbg", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-amd64-signed-template", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-arm64-signed-template", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-i386-signed-template", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-kbuild-4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-libc-dev", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-perf-4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-source-4.19", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-support-4.19.0-5", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"lockdep", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"usbip", ver:"4.19.37-5+deb10u2", rls:"DEB10"))) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if(__pkg_match) {
  exit(99);
}

exit(0);