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nessusUbuntu Security Notice (C) 2006-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.UBUNTU_USN-246-1.NASL
HistoryMar 13, 2006 - 12:00 a.m.

Ubuntu 4.10 / 5.04 / 5.10 : imagemagick vulnerabilities (USN-246-1)

2006-03-1300:00:00
Ubuntu Security Notice (C) 2006-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
www.tenable.com
20

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.019

Percentile

88.7%

Florian Weimer discovered that the delegate code did not correctly handle file names which embed shell commands (CVE-2005-4601). Daniel Kobras found a format string vulnerability in the SetImageInfo() function (CVE-2006-0082). By tricking a user into processing an image file with a specially crafted file name, these two vulnerabilities could be exploited to execute arbitrary commands with the user’s privileges. These vulnerability become particularly critical if malicious images are sent as email attachments and the email client uses imagemagick to convert/display the images (e. g. Thunderbird and Gnus).

In addition, Eero Hakkinen reported a bug in the command line argument processing of the ‘display’ command. Arguments that contained wildcards and were expanded to several files could trigger a heap overflow. However, there is no known possiblity to exploit this remotely. (http://bugs.debian.org/345595)

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 Ubuntu Security Notice USN-246-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

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

if (description)
{
  script_id(21054);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2005-4601", "CVE-2006-0082");
  script_bugtraq_id(16093);
  script_xref(name:"USN", value:"246-1");

  script_name(english:"Ubuntu 4.10 / 5.04 / 5.10 : imagemagick vulnerabilities (USN-246-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Florian Weimer discovered that the delegate code did not correctly
handle file names which embed shell commands (CVE-2005-4601). Daniel
Kobras found a format string vulnerability in the SetImageInfo()
function (CVE-2006-0082). By tricking a user into processing an image
file with a specially crafted file name, these two vulnerabilities
could be exploited to execute arbitrary commands with the user's
privileges. These vulnerability become particularly critical if
malicious images are sent as email attachments and the email client
uses imagemagick to convert/display the images (e. g. Thunderbird and
Gnus).

In addition, Eero Hakkinen reported a bug in the command line argument
processing of the 'display' command. Arguments that contained
wildcards and were expanded to several files could trigger a heap
overflow. However, there is no known possiblity to exploit this
remotely. (http://bugs.debian.org/345595)

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:imagemagick");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmagick++6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmagick++6-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmagick++6c2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmagick6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmagick6-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:perlmagick");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:4.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:5.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2006/01/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/03/13");
  script_set_attribute(attribute:"vuln_publication_date", value:"2005/12/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2006-2019 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(4\.10|5\.04|5\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 4.10 / 5.04 / 5.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"4.10", pkgname:"imagemagick", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libmagick++6", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libmagick++6-dev", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libmagick6", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"libmagick6-dev", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"4.10", pkgname:"perlmagick", pkgver:"6.0.2.5-1ubuntu1.6")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"imagemagick", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libmagick++6", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libmagick++6-dev", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libmagick6", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"libmagick6-dev", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.04", pkgname:"perlmagick", pkgver:"6.0.6.2-2.1ubuntu1.2")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"imagemagick", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libmagick++6-dev", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libmagick++6c2", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libmagick6", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"libmagick6-dev", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;
if (ubuntu_check(osver:"5.10", pkgname:"perlmagick", pkgver:"6.2.3.4-1ubuntu1.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "imagemagick / libmagick++6 / libmagick++6-dev / libmagick++6c2 / etc");
}

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

EPSS

0.019

Percentile

88.7%