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.
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-2943-1. 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(90306);
script_version("2.11");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");
script_cve_id(
"CVE-2014-9769",
"CVE-2015-2325",
"CVE-2015-2326",
"CVE-2015-2327",
"CVE-2015-2328",
"CVE-2015-3210",
"CVE-2015-5073",
"CVE-2015-8380",
"CVE-2015-8381",
"CVE-2015-8382",
"CVE-2015-8383",
"CVE-2015-8384",
"CVE-2015-8385",
"CVE-2015-8386",
"CVE-2015-8387",
"CVE-2015-8388",
"CVE-2015-8389",
"CVE-2015-8390",
"CVE-2015-8391",
"CVE-2015-8392",
"CVE-2015-8393",
"CVE-2015-8394",
"CVE-2015-8395",
"CVE-2016-1283",
"CVE-2016-3191"
);
script_xref(name:"USN", value:"2943-1");
script_name(english:"Ubuntu 14.04 LTS : PCRE vulnerabilities (USN-2943-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"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.
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://ubuntu.com/security/notices/USN-2943-1");
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:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/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_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2015-8391");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2016-3191");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/02");
script_set_attribute(attribute:"patch_publication_date", value:"2016/03/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/01");
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:"p-cpe:/a:canonical:ubuntu_linux:libpcre3-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpcre3-udeb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpcrecpp0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:pcregrep");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var pkgs = [
{'osver': '14.04', 'pkgname': 'libpcre3', 'pkgver': '1:8.31-2ubuntu2.2'},
{'osver': '14.04', 'pkgname': 'libpcre3-dev', 'pkgver': '1:8.31-2ubuntu2.2'},
{'osver': '14.04', 'pkgname': 'libpcre3-udeb', 'pkgver': '1:8.31-2ubuntu2.2'},
{'osver': '14.04', 'pkgname': 'libpcrecpp0', 'pkgver': '1:8.31-2ubuntu2.2'},
{'osver': '14.04', 'pkgname': 'pcregrep', 'pkgver': '1:8.31-2ubuntu2.2'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libpcre3 / libpcre3-dev / libpcre3-udeb / libpcrecpp0 / pcregrep');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | libpcre3 | p-cpe:/a:canonical:ubuntu_linux:libpcre3 |
canonical | ubuntu_linux | libpcre3-dev | p-cpe:/a:canonical:ubuntu_linux:libpcre3-dev |
canonical | ubuntu_linux | libpcre3-udeb | p-cpe:/a:canonical:ubuntu_linux:libpcre3-udeb |
canonical | ubuntu_linux | libpcrecpp0 | p-cpe:/a:canonical:ubuntu_linux:libpcrecpp0 |
canonical | ubuntu_linux | pcregrep | p-cpe:/a:canonical:ubuntu_linux:pcregrep |
canonical | ubuntu_linux | 14.04 | cpe:/o:canonical:ubuntu_linux:14.04:-:lts |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9769
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2325
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2326
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2327
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2328
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3210
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5073
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8380
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8381
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8382
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8383
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8384
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8385
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8386
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8387
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8388
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8389
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8390
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8391
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8392
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8393
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8394
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8395
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1283
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3191
ubuntu.com/security/notices/USN-2943-1