Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : pcre3 vulnerabilities (USN-2694-1)

2015-07-30T00:00:00
ID UBUNTU_USN-2694-1.NASL
Type nessus
Reporter Tenable
Modified 2016-12-20T00:00:00

Description

Michele Spagnuolo discovered that PCRE incorrectly handled certain regular expressions. A remote attacker could use this issue to cause applications using PCRE to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-8964)

Kai Lu discovered that PCRE incorrectly handled certain regular expressions. A remote attacker could use this issue to cause applications using PCRE to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2325, CVE-2015-2326)

Wen Guanxing discovered that PCRE incorrectly handled certain regular expressions. A remote attacker could use this issue to cause applications using PCRE to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 15.04. (CVE-2015-3210)

It was discovered that PCRE incorrectly handled certain regular expressions. A remote attacker could use this issue to cause applications using PCRE to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and 14.04 LTS. (CVE-2015-5073).

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2694-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(85122);
  script_version("$Revision: 2.5 $");
  script_cvs_date("$Date: 2016/12/20 14:45:31 $");

  script_cve_id("CVE-2014-8964", "CVE-2015-2325", "CVE-2015-2326", "CVE-2015-3210", "CVE-2015-5073");
  script_osvdb_id(115004, 119870, 119871, 122791, 123810);
  script_xref(name:"USN", value:"2694-1");

  script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 15.04 : pcre3 vulnerabilities (USN-2694-1)");
  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:
"Michele Spagnuolo discovered that PCRE incorrectly handled certain
regular expressions. A remote attacker could use this issue to cause
applications using PCRE to crash, resulting in a denial of service, or
possibly execute arbitrary code. This issue only affected Ubuntu 14.04
LTS. (CVE-2014-8964)

Kai Lu discovered that PCRE incorrectly handled certain regular
expressions. A remote attacker could use this issue to cause
applications using PCRE to crash, resulting in a denial of service, or
possibly execute arbitrary code. This issue only affected Ubuntu 14.04
LTS and Ubuntu 15.04. (CVE-2015-2325, CVE-2015-2326)

Wen Guanxing discovered that PCRE incorrectly handled certain regular
expressions. A remote attacker could use this issue to cause
applications using PCRE to crash, resulting in a denial of service, or
possibly execute arbitrary code. This issue only affected Ubuntu
15.04. (CVE-2015-3210)

It was discovered that PCRE incorrectly handled certain regular
expressions. A remote attacker could use this issue to cause
applications using PCRE to crash, resulting in a denial of service, or
possibly execute arbitrary code. This issue only affected Ubuntu 12.04
LTS and 14.04 LTS. (CVE-2015-5073).

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 libpcre3 package."
  );
  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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  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:libpcre3");
  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:15.04");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 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:"^(12\.04|14\.04|15\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 15.04", "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:"libpcre3", pkgver:"8.12-4ubuntu0.1")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"libpcre3", pkgver:"1:8.31-2ubuntu2.1")) flag++;
if (ubuntu_check(osver:"15.04", pkgname:"libpcre3", pkgver:"2:8.35-3.3ubuntu1.1")) 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, "libpcre3");
}