Ubuntu: Security Advisory (USN-3903-1)

# SPDX-FileCopyrightText: 2019 Greenbone AG
# 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-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.843926");
  script_cve_id("CVE-2018-16880", "CVE-2018-18397", "CVE-2019-6133");
  script_tag(name:"creation_date", value:"2019-03-07 03:11:55 +0000 (Thu, 07 Mar 2019)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-02-04 18:37:12 +0000 (Mon, 04 Feb 2019)");

  script_name("Ubuntu: Security Advisory (USN-3903-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone AG");
  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=UBUNTU18\.10");

  script_xref(name:"Advisory-ID", value:"USN-3903-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-3903-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux, linux-azure, linux-gcp, linux-kvm, linux-raspi2' package(s) announced via the USN-3903-1 advisory.");

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

  script_tag(name:"insight", value:"Jason Wang discovered that the vhost net driver in the Linux kernel
contained an out of bounds write vulnerability. An attacker in a guest
virtual machine could use this to cause a denial of service (host system
crash) or possibly execute arbitrary code in the host kernel.
(CVE-2018-16880)

Jann Horn discovered that the userfaultd implementation in the Linux kernel
did not properly restrict access to certain ioctls. A local attacker could
use this possibly to modify files. (CVE-2018-18397)

Jann Horn discovered a race condition in the fork() system call in the
Linux kernel. A local attacker could use this to gain access to services
that cache authorizations. (CVE-2019-6133)");

  script_tag(name:"affected", value:"'linux, linux-azure, linux-gcp, linux-kvm, linux-raspi2' package(s) on Ubuntu 18.10.");

  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 == "UBUNTU18.10") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-1007-gcp", ver:"4.18.0-1007.8", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-1008-kvm", ver:"4.18.0-1008.8", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-1010-raspi2", ver:"4.18.0-1010.12", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-1013-azure", ver:"4.18.0-1013.13", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-16-generic", ver:"4.18.0-16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-16-generic-lpae", ver:"4.18.0-16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-16-lowlatency", ver:"4.18.0-16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.18.0-16-snapdragon", ver:"4.18.0-16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-azure", ver:"4.18.0.1013.14", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gcp", ver:"4.18.0.1007.7", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"4.18.0.16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"4.18.0.16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-gke", ver:"4.18.0.1007.7", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-kvm", ver:"4.18.0.1008.8", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"4.18.0.16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi2", ver:"4.18.0.1010.7", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-snapdragon", ver:"4.18.0.16.17", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);