The remote host is missing an update for the
# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(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("1.3.6.1.4.1.25623.1.0.844448");
script_version("2020-05-29T08:53:11+0000");
script_cve_id("CVE-2019-19377", "CVE-2019-19769", "CVE-2020-11494", "CVE-2020-11565", "CVE-2020-11608", "CVE-2020-11609", "CVE-2020-11668", "CVE-2020-12657");
script_tag(name:"cvss_base", value:"6.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_tag(name:"last_modification", value:"2020-05-29 08:53:11 +0000 (Fri, 29 May 2020)");
script_tag(name:"creation_date", value:"2020-05-29 03:00:28 +0000 (Fri, 29 May 2020)");
script_name("Ubuntu: Security Advisory for linux (USN-4369-2)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
script_family("Ubuntu Local Security Checks");
script_dependencies("gather-package-list.nasl");
script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=(UBUNTU19\.10|UBUNTU18\.04 LTS)");
script_xref(name:"USN", value:"4369-2");
script_xref(name:"URL", value:"https://lists.ubuntu.com/archives/ubuntu-security-announce/2020-May/005456.html");
script_tag(name:"summary", value:"The remote host is missing an update for the 'linux'
package(s) announced via the USN-4369-2 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"USN-4369-1 fixed vulnerabilities in the 5.3 Linux kernel. Unfortunately,
that update introduced a regression in overlayfs. This update corrects
the problem.
We apologize for the inconvenience.
Original advisory details:
It was discovered that the btrfs implementation in the Linux kernel did not
properly detect that a block was marked dirty in some situations. An
attacker could use this to specially craft a file system image that, when
unmounted, could cause a denial of service (system crash). (CVE-2019-19377)
Tristan Madani discovered that the file locking implementation in the Linux
kernel contained a race condition. A local attacker could possibly use this
to cause a denial of service or expose sensitive information.
(CVE-2019-19769)
It was discovered that the Serial CAN interface driver in the Linux kernel
did not properly initialize data. A local attacker could use this to expose
sensitive information (kernel memory). (CVE-2020-11494)
It was discovered that the linux kernel did not properly validate certain
mount options to the tmpfs virtual memory file system. A local attacker
with the ability to specify mount options could use this to cause a denial
of service (system crash). (CVE-2020-11565)
It was discovered that the OV51x USB Camera device driver in the Linux
kernel did not properly validate device metadata. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2020-11608)
It was discovered that the STV06XX USB Camera device driver in the Linux
kernel did not properly validate device metadata. A physically proximate
attacker could use this to cause a denial of service (system crash).
(CVE-2020-11609)
It was discovered that the Xirlink C-It USB Camera device driver in the
Linux kernel did not properly validate device metadata. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2020-11668)
It was discovered that the block layer in the Linux kernel contained a race
condition leading to a use-after-free vulnerability. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2020-12657)");
script_tag(name:"affected", value:"'linux' package(s) on Ubuntu 19.10, Ubuntu 18.04 LTS.");
script_tag(name:"solution", value:"Please install the updated package(s).");
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");
release = dpkg_get_ssh_release();
if(!release)
exit(0);
res = "";
report = "";
if(release == "UBUNTU19.10") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-1026-raspi2", ver:"5.3.0-1026.28", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-55-generic", ver:"5.3.0-55.49", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-55-generic-lpae", ver:"5.3.0-55.49", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-55-lowlatency", ver:"5.3.0-55.49", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-55-snapdragon", ver:"5.3.0-55.49", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"5.3.0.55.47", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"5.3.0.55.47", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"5.3.0.55.47", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi2", ver:"5.3.0.1026.23", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-snapdragon", ver:"5.3.0.55.47", rls:"UBUNTU19.10"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual", ver:"5.3.0.55.47", rls:"UBUNTU19.10"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
if(release == "UBUNTU18.04 LTS") {
if(!isnull(res = isdpkgvuln(pkg:"linux-image-5.3.0-1026-raspi2", ver:"5.3.0-1026.28~18.04.1", rls:"UBUNTU18.04 LTS"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi2-hwe-18.04", ver:"5.3.0.1026.15", rls:"UBUNTU18.04 LTS"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);