It was discovered that libiberty incorrectly handled parsing certain binaries. If a user or automated system were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause libiberty 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-4326-1. 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(135398);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");
script_cve_id(
"CVE-2018-12641",
"CVE-2018-12697",
"CVE-2018-12698",
"CVE-2018-12934",
"CVE-2018-17794",
"CVE-2018-17985",
"CVE-2018-18483",
"CVE-2018-18484",
"CVE-2018-18700",
"CVE-2018-18701",
"CVE-2018-9138",
"CVE-2019-14250",
"CVE-2019-9070",
"CVE-2019-9071"
);
script_xref(name:"USN", value:"4326-1");
script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : libiberty vulnerabilities (USN-4326-1)");
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 libiberty incorrectly handled parsing certain
binaries. If a user or automated system were tricked into processing a
specially crafted binary, a remote attacker could use this issue to
cause libiberty 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-4326-1");
script_set_attribute(attribute:"solution", value:
"Update the affected libiberty-dev package.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2019-9070");
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:"2018/03/30");
script_set_attribute(attribute:"patch_publication_date", value:"2020/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libiberty-dev");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-: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) 2020-2023 Canonical, Inc. / NASL script (C) 2020-2023 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 (! ('16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', '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': '16.04', 'pkgname': 'libiberty-dev', 'pkgver': '20160215-1ubuntu0.3'},
{'osver': '18.04', 'pkgname': 'libiberty-dev', 'pkgver': '20170913-1ubuntu0.1'}
];
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_WARNING,
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, 'libiberty-dev');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | libiberty-dev | p-cpe:/a:canonical:ubuntu_linux:libiberty-dev |
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:lts |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12641
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12697
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12698
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12934
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17794
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17985
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18483
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18484
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18700
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18701
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9138
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14250
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9070
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9071
ubuntu.com/security/notices/USN-4326-1