Ubuntu: Security Advisory (USN-3443-1)

# SPDX-FileCopyrightText: 2017 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("1.3.6.1.4.1.25623.1.0.843325");
  script_cve_id("CVE-2017-1000255", "CVE-2017-14106");
  script_tag(name:"creation_date", value:"2017-10-11 07:56:44 +0000 (Wed, 11 Oct 2017)");
  script_version("2024-02-02T05:06:06+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:06 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:N/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2017-11-22 16:08:03 +0000 (Wed, 22 Nov 2017)");

  script_name("Ubuntu: Security Advisory (USN-3443-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2017 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=UBUNTU17\.04");

  script_xref(name:"Advisory-ID", value:"USN-3443-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-3443-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'linux, linux-raspi2' package(s) announced via the USN-3443-1 advisory.");

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

  script_tag(name:"insight", value:"It was discovered that on the PowerPC architecture, the kernel did not
properly sanitize the signal stack when handling sigreturn(). A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-1000255)

Andrey Konovalov discovered that a divide-by-zero error existed in the TCP
stack implementation in the Linux kernel. A local attacker could use this
to cause a denial of service (system crash). (CVE-2017-14106)");

  script_tag(name:"affected", value:"'linux, linux-raspi2' package(s) on Ubuntu 17.04.");

  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 == "UBUNTU17.04") {

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.10.0-1019-raspi2", ver:"4.10.0-1019.22", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.10.0-37-generic", ver:"4.10.0-37.41", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.10.0-37-generic-lpae", ver:"4.10.0-37.41", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-4.10.0-37-lowlatency", ver:"4.10.0-37.41", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-generic-lpae", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-lowlatency", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-powerpc-e500mc", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-powerpc-smp", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-powerpc64-emb", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-powerpc64-smp", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-raspi2", ver:"4.10.0.1019.20", rls:"UBUNTU17.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"linux-image-virtual", ver:"4.10.0.37.37", rls:"UBUNTU17.04"))) {
    report += res;
  }

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

exit(0);