The version of mozilla-nss installed on the remote host is prior to 3.23 / 3.40.1 / 3.73. It is, therefore, affected by a vulnerability as referenced in the SSA:2021-337-01 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 Slackware Security Advisory SSA:2021-337-01. The text
# itself is copyright (C) Slackware Linux, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(155849);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/22");
script_cve_id("CVE-2021-43527");
script_name(english:"Slackware Linux 14.0 / 14.1 / 14.2 / current mozilla-nss Vulnerability (SSA:2021-337-01)");
script_set_attribute(attribute:"synopsis", value:
"The remote Slackware Linux host is missing a security update to mozilla-nss.");
script_set_attribute(attribute:"description", value:
"The version of mozilla-nss installed on the remote host is prior to 3.23 / 3.40.1 / 3.73. It is, therefore, affected by
a vulnerability as referenced in the SSA:2021-337-01 advisory.
- NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow
when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures
encoded within CMS, S/MIME, PKCS \#7, or PKCS \#12 are likely to be impacted. Applications using NSS for
certificate validation or other TLS, X.509, OCSP or CRL functionality may be impacted, depending on how
they configure NSS. *Note: This vulnerability does NOT impact Mozilla Firefox.* However, email clients and
PDF viewers that use NSS for signature verification, such as Thunderbird, LibreOffice, Evolution and
Evince are believed to be impacted. This vulnerability affects NSS < 3.73 and NSS < 3.68.1.
(CVE-2021-43527)
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:"solution", value:
"Upgrade the affected mozilla-nss 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:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-43527");
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:"2021/12/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/12/03");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:mozilla-nss");
script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux");
script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.2");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Slackware 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/Slackware/release", "Host/Slackware/packages");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("slackware.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware");
if (!get_kb_item("Host/Slackware/packages")) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Slackware", cpu);
var flag = 0;
var constraints = [
{ 'fixed_version' : '3.23', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.0', 'service_pack' : '2_slack14.0', 'arch' : 'i486' },
{ 'fixed_version' : '3.23', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.0', 'service_pack' : '2_slack14.0', 'arch' : 'x86_64' },
{ 'fixed_version' : '3.40.1', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.1', 'service_pack' : '2_slack14.1', 'arch' : 'i486' },
{ 'fixed_version' : '3.40.1', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.1', 'service_pack' : '2_slack14.1', 'arch' : 'x86_64' },
{ 'fixed_version' : '3.40.1', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.2', 'service_pack' : '2_slack14.2', 'arch' : 'i586' },
{ 'fixed_version' : '3.40.1', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : '14.2', 'service_pack' : '2_slack14.2', 'arch' : 'x86_64' },
{ 'fixed_version' : '3.73', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : 'current', 'service_pack' : '1', 'arch' : 'i586' },
{ 'fixed_version' : '3.73', 'product' : 'mozilla-nss', 'os_name' : 'Slackware Linux', 'os_version' : 'current', 'service_pack' : '1', 'arch' : 'x86_64' }
];
foreach constraint (constraints) {
var pkg_arch = constraint['arch'];
var arch = NULL;
if (pkg_arch == "x86_64") {
arch = pkg_arch;
}
if (slackware_check(osver:constraint['os_version'],
arch:arch,
pkgname:constraint['product'],
pkgver:constraint['fixed_version'],
pkgarch:pkg_arch,
pkgnum:constraint['service_pack'])) flag++;
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : slackware_report_get()
);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");