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nessusThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-4160.NASL
HistoryApr 02, 2018 - 12:00 a.m.

Debian DSA-4160-1 : libevt - security update

2018-04-0200:00:00
This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

12.7%

It was discovered that insufficient input sanitising in libevt, a library to access the Windows Event Log (EVT) format, could result in denial of service if a malformed EVT file is processed.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4160. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(108772);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/18");

  script_cve_id("CVE-2018-8754");
  script_xref(name:"DSA", value:"4160");

  script_name(english:"Debian DSA-4160-1 : libevt - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"It was discovered that insufficient input sanitising in libevt, a
library to access the Windows Event Log (EVT) format, could result in
denial of service if a malformed EVT file is processed."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/libevt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/libevt"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2018/dsa-4160"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Upgrade the libevt packages.

For the stable distribution (stretch), this problem has been fixed in
version 20170120-1+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/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:libevt");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/02");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 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:"9.0", prefix:"libevt-dbg", reference:"20170120-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libevt-dev", reference:"20170120-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libevt-utils", reference:"20170120-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libevt1", reference:"20170120-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python-libevt", reference:"20170120-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python3-libevt", reference:"20170120-1+deb9u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:deb_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
debiandebian_linuxlibevtp-cpe:/a:debian:debian_linux:libevt
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

12.7%