The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dsa-4954 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 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-4954. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(152419);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/04");
script_cve_id("CVE-2021-3672");
script_name(english:"Debian DSA-4954-1 : c-ares - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dsa-4954
advisory. 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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992053");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/c-ares");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2021/dsa-4954");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3672");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/c-ares");
script_set_attribute(attribute:"solution", value:
"Upgrade the c-ares packages.
For the stable distribution (buster), this problem has been fixed in version 1.14.0-1+deb10u1.");
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:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3672");
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:"2021/08/10");
script_set_attribute(attribute:"patch_publication_date", value:"2021/08/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/08/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-ares-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libc-ares2");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('audit.inc');
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
release = get_kb_item('Host/Debian/release');
if ( isnull(release) ) audit(AUDIT_OS_NOT, 'Debian');
release = chomp(release);
if (! preg(pattern:"^(10)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + release);
cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
pkgs = [
{'release': '10.0', 'prefix': 'libc-ares-dev', 'reference': '1.14.0-1+deb10u1'},
{'release': '10.0', 'prefix': 'libc-ares2', 'reference': '1.14.0-1+deb10u1'}
];
flag = 0;
foreach package_array ( pkgs ) {
release = NULL;
prefix = NULL;
reference = NULL;
if (!empty_or_null(package_array['release'])) release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (release && prefix && reference) {
if (deb_check(release:release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : deb_report_get()
);
exit(0);
}
else
{
tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libc-ares-dev / libc-ares2');
}
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libc-ares-dev | p-cpe:/a:debian:debian_linux:libc-ares-dev |
debian | debian_linux | 10.0 | cpe:/o:debian:debian_linux:10.0 |
debian | debian_linux | libc-ares2 | p-cpe:/a:debian:debian_linux:libc-ares2 |