Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : patch vulnerabilities (USN-2651-1)

2015-06-23T00:00:00
ID UBUNTU_USN-2651-1.NASL
Type nessus
Reporter Ubuntu Security Notice (C) 2015-2020 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2015-06-23T00:00:00

Description

Jakub Wilk discovered that GNU patch did not correctly handle file paths in patch files. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 12.04 LTS. (CVE-2010-4651)

Laszlo Boszormenyi discovered that GNU patch did not correctly handle some patch files. An attacker could specially craft a patch file that could cause a denial of service. (CVE-2014-9637)

Jakub Wilk discovered that GNU patch did not correctly handle symbolic links in git style patch files. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-1196)

Jakub Wilk discovered that GNU patch did not correctly handle file renames in git style patch files. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-1395)

Jakub Wilk discovered the fix for CVE-2015-1196 was incomplete for GNU patch. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-1396).

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-2651-1. 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(84339);
  script_version("2.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2010-4651", "CVE-2014-9637", "CVE-2015-1196", "CVE-2015-1395", "CVE-2015-1396");
  script_bugtraq_id(46768, 72074, 72286, 72846);
  script_xref(name:"USN", value:"2651-1");

  script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : patch vulnerabilities (USN-2651-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Jakub Wilk discovered that GNU patch did not correctly handle file
paths in patch files. An attacker could specially craft a patch file
that could overwrite arbitrary files with the privileges of the user
invoking the program. This issue only affected Ubuntu 12.04 LTS.
(CVE-2010-4651)

Laszlo Boszormenyi discovered that GNU patch did not correctly
handle some patch files. An attacker could specially craft a patch
file that could cause a denial of service. (CVE-2014-9637)

Jakub Wilk discovered that GNU patch did not correctly handle symbolic
links in git style patch files. An attacker could specially craft a
patch file that could overwrite arbitrary files with the privileges of
the user invoking the program. This issue only affected Ubuntu 14.04
LTS and Ubuntu 14.10. (CVE-2015-1196)

Jakub Wilk discovered that GNU patch did not correctly handle file
renames in git style patch files. An attacker could specially craft a
patch file that could overwrite arbitrary files with the privileges of
the user invoking the program. This issue only affected Ubuntu 14.04
LTS and Ubuntu 14.10. (CVE-2015-1395)

Jakub Wilk discovered the fix for CVE-2015-1196 was incomplete for GNU
patch. An attacker could specially craft a patch file that could
overwrite arbitrary files with the privileges of the user invoking the
program. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10.
(CVE-2015-1396).

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:"see_also",
    value:"https://usn.ubuntu.com/2651-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected patch package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:patch");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/03/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2015-2020 Canonical, Inc. / NASL script (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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 (! preg(pattern:"^(12\.04|14\.04|14\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 14.10", "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:"12.04", pkgname:"patch", pkgver:"2.6.1-3ubuntu0.1")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"patch", pkgver:"2.7.1-4ubuntu2.3")) flag++;
if (ubuntu_check(osver:"14.10", pkgname:"patch", pkgver:"2.7.1-5ubuntu0.3")) 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, "patch");
}