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nessusThis script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-3995.NASL
HistoryOct 11, 2017 - 12:00 a.m.

Debian DSA-3995-1 : libxfont - security update

2017-10-1100:00:00
This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
12

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

3.6 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

26.7%

Two vulnerabilities were found in libXfont, the X11 font rasterisation library, which could result in denial of service or memory disclosure.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3995. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(103757);
  script_version("3.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2017-13720", "CVE-2017-13722");
  script_xref(name:"DSA", value:"3995");

  script_name(english:"Debian DSA-3995-1 : libxfont - 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:
"Two vulnerabilities were found in libXfont, the X11 font rasterisation
library, which could result in denial of service or memory disclosure."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/libxfont"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/libxfont"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3995"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the libxfont packages.

For the oldstable distribution (jessie), these problems have been
fixed in version 1:1.5.1-1+deb8u1.

For the stable distribution (stretch), these problems have been fixed
in version 1:2.0.1-3+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxfont");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/10/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/10/11");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"libxfont-dev", reference:"1:1.5.1-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxfont1", reference:"1:1.5.1-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxfont1-dbg", reference:"1:1.5.1-1+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libxfont1-udeb", reference:"1:1.5.1-1+deb8u1")) flag++;
if (deb_check(release:"9.0", prefix:"libxfont-dev", reference:"1:2.0.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libxfont2", reference:"1:2.0.1-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libxfont2-udeb", reference:"1:2.0.1-3+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_linuxlibxfontp-cpe:/a:debian:debian_linux:libxfont
debiandebian_linux8.0cpe:/o:debian:debian_linux:8.0
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

3.6 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

26.7%