The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by a vulnerability as referenced in the USN-6737-1 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6737-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(193515);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/19");
script_cve_id("CVE-2024-2961");
script_xref(name:"USN", value:"6737-1");
script_name(english:"Ubuntu 20.04 LTS / 22.04 LTS / 23.10 : GNU C Library vulnerability (USN-6737-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by a vulnerability as
referenced in the USN-6737-1 advisory.
- The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to
it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT character set, which may be used to
crash an application or overwrite a neighbouring variable. (CVE-2024-2961)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-6737-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/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:N/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-2961");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2024/04/17");
script_set_attribute(attribute:"patch_publication_date", value:"2024/04/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/18");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.10");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:glibc-source");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc-dev-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc-devtools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-amd64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-armel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-amd64");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-armel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-i386");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-s390");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-dev-x32");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-i386");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-lse");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-pic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-prof");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-s390");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libc6-x32");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:locales");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:locales-all");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:nscd");
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) 2024 Canonical, Inc. / NASL script (C) 2024 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 (! ('20.04' >< os_release || '22.04' >< os_release || '23.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 20.04 / 22.04 / 23.10', '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': '20.04', 'pkgname': 'glibc-source', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc-bin', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc-dev-bin', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-amd64', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-armel', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev-amd64', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev-armel', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev-i386', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev-s390', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-dev-x32', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-i386', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-lse', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-pic', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-prof', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-s390', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'libc6-x32', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'locales', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'locales-all', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '20.04', 'pkgname': 'nscd', 'pkgver': '2.31-0ubuntu9.15'},
{'osver': '22.04', 'pkgname': 'glibc-source', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc-bin', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc-dev-bin', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc-devtools', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-amd64', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-dev', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-dev-amd64', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-dev-i386', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-dev-s390', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-dev-x32', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-i386', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-prof', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-s390', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'libc6-x32', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'locales', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'locales-all', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '22.04', 'pkgname': 'nscd', 'pkgver': '2.35-0ubuntu3.7'},
{'osver': '23.10', 'pkgname': 'glibc-source', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc-bin', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc-dev-bin', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc-devtools', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-amd64', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-dev', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-dev-amd64', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-dev-i386', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-dev-s390', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-dev-x32', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-i386', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-prof', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-s390', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'libc6-x32', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'locales', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'locales-all', 'pkgver': '2.38-1ubuntu6.2'},
{'osver': '23.10', 'pkgname': 'nscd', 'pkgver': '2.38-1ubuntu6.2'}
];
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_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, 'glibc-source / libc-bin / libc-dev-bin / libc-devtools / libc6 / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 20.04 | cpe:/o:canonical:ubuntu_linux:20.04:-:lts |
canonical | ubuntu_linux | libc-devtools | p-cpe:/a:canonical:ubuntu_linux:libc-devtools |
canonical | ubuntu_linux | libc6-armel | p-cpe:/a:canonical:ubuntu_linux:libc6-armel |
canonical | ubuntu_linux | libc6-lse | p-cpe:/a:canonical:ubuntu_linux:libc6-lse |
canonical | ubuntu_linux | libc6-s390 | p-cpe:/a:canonical:ubuntu_linux:libc6-s390 |
canonical | ubuntu_linux | glibc-source | p-cpe:/a:canonical:ubuntu_linux:glibc-source |
canonical | ubuntu_linux | nscd | p-cpe:/a:canonical:ubuntu_linux:nscd |
canonical | ubuntu_linux | libc6-prof | p-cpe:/a:canonical:ubuntu_linux:libc6-prof |
canonical | ubuntu_linux | libc6-dev-armel | p-cpe:/a:canonical:ubuntu_linux:libc6-dev-armel |
canonical | ubuntu_linux | libc6-i386 | p-cpe:/a:canonical:ubuntu_linux:libc6-i386 |