Debian: Security Advisory (DSA-4213-1)

# SPDX-FileCopyrightText: 2018 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("1.3.6.1.4.1.25623.1.0.704213");
  script_cve_id("CVE-2017-15038", "CVE-2017-15119", "CVE-2017-15124", "CVE-2017-15268", "CVE-2017-15289", "CVE-2017-16845", "CVE-2017-17381", "CVE-2017-18043", "CVE-2017-5715", "CVE-2018-5683", "CVE-2018-7550");
  script_tag(name:"creation_date", value:"2018-05-28 22:00:00 +0000 (Mon, 28 May 2018)");
  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:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-10 17:42:19 +0000 (Thu, 10 Sep 2020)");

  script_name("Debian: Security Advisory (DSA-4213-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone AG");
  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=DEB9");

  script_xref(name:"Advisory-ID", value:"DSA-4213-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2018/DSA-4213-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4213");
  script_xref(name:"URL", value:"https://www.qemu.org/2018/01/04/spectre/");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/qemu");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'qemu' package(s) announced via the DSA-4213-1 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 were discovered in qemu, a fast processor emulator.

CVE-2017-15038

Tuomas Tynkkynen discovered an information leak in 9pfs.

CVE-2017-15119

Eric Blake discovered that the NBD server insufficiently restricts large option requests, resulting in denial of service.

CVE-2017-15124

Daniel Berrange discovered that the integrated VNC server insufficiently restricted memory allocation, which could result in denial of service.

CVE-2017-15268

A memory leak in websockets support may result in denial of service.

CVE-2017-15289

Guoxiang Niu discovered an OOB write in the emulated Cirrus graphics adaptor which could result in denial of service.

CVE-2017-16845

Cyrille Chatras discovered an information leak in PS/2 mouse and keyboard emulation which could be exploited during instance migration.

CVE-2017-17381

Dengzhan Heyuandong Bijunhua and Liweichao discovered that an implementation error in the virtio vring implementation could result in denial of service.

CVE-2017-18043

Eric Blake discovered an integer overflow in an internally used macro which could result in denial of service.

CVE-2018-5683

Jiang Xin and Lin ZheCheng discovered an OOB memory access in the emulated VGA adaptor which could result in denial of service.

CVE-2018-7550

Cyrille Chatras discovered that an OOB memory write when using multiboot could result in the execution of arbitrary code.

This update also backports a number of mitigations against the Spectre v2 vulnerability affecting modern CPUs ( CVE-2017-5715). For additional information please refer to [link moved to references]

For the stable distribution (stretch), these problems have been fixed in version 1:2.8+dfsg-6+deb9u4.

We recommend that you upgrade your qemu packages.

For the detailed security status of qemu please refer to its security tracker page at: [link moved to references]");

  script_tag(name:"affected", value:"'qemu' package(s) on Debian 9.");

  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 == "DEB9") {

  if(!isnull(res = isdpkgvuln(pkg:"qemu", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-block-extra", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-guest-agent", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-kvm", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-arm", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-common", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-mips", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-misc", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-ppc", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-sparc", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-system-x86", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-user", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-user-binfmt", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-user-static", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"qemu-utils", ver:"1:2.8+dfsg-6+deb9u4", rls:"DEB9"))) {
    report += res;
  }

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

exit(0);