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nessusThis script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-1524.NASL
HistorySep 28, 2018 - 12:00 a.m.

Debian DLA-1524-1 : libxml2 security update

2018-09-2800:00:00
This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
17

CVE-2018-14404 Fix of a NULL pointer dereference which might result in a crash and thus in a denial of service.

CVE-2018-14567 and CVE-2018-9251 Approvement in LZMA error handling which prevents an infinite loop.

CVE-2017-18258 Limit available memory to 100MB to avoid exhaustive memory consumption by malicious files.

For Debian 8 ‘Jessie’, these problems have been fixed in version 2.9.1+dfsg1-5+deb8u7.

We recommend that you upgrade your libxml2 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1524-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(117811);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2017-18258", "CVE-2018-14404", "CVE-2018-14567", "CVE-2018-9251");

  script_name(english:"Debian DLA-1524-1 : libxml2 security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"CVE-2018-14404 Fix of a NULL pointer dereference which might result in
a crash and thus in a denial of service.

CVE-2018-14567 and CVE-2018-9251 Approvement in LZMA error handling
which prevents an infinite loop.

CVE-2017-18258 Limit available memory to 100MB to avoid exhaustive
memory consumption by malicious files.

For Debian 8 'Jessie', these problems have been fixed in version
2.9.1+dfsg1-5+deb8u7.

We recommend that you upgrade your libxml2 packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/libxml2"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-utils-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-libxml2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-libxml2-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/09/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"8.0", prefix:"libxml2", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-dbg", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-dev", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-doc", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-utils", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libxml2-utils-dbg", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"python-libxml2", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"python-libxml2-dbg", reference:"2.9.1+dfsg1-5+deb8u7")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");