CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
75.5%
It was found that GnuTLS did not check activation and expiration dates of CA certificates. This could cause an application using GnuTLS to incorrectly accept a certificate as valid when its issuing CA is already expired. (CVE-2014-8155)
It was found that GnuTLS did not verify whether a hashing algorithm listed in a signature matched the hashing algorithm listed in the certificate. An attacker could create a certificate that used a different hashing algorithm than it claimed, possibly causing GnuTLS to use an insecure, disallowed hashing algorithm during certificate verification. (CVE-2015-0282)
It was discovered that GnuTLS did not check if all sections of X.509 certificates indicate the same signature algorithm. This flaw, in combination with a different flaw, could possibly lead to a bypass of the certificate signature check. (CVE-2015-0294)
The CVE-2014-8155 issue was discovered by Marcel Kolaja of Red Hat.
The CVE-2015-0282 and CVE-2015-0294 issues were discovered by Nikos Mavrogiannopoulos of the Red Hat Security Technologies Team.
This update also fixes the following bug :
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(85193);
script_version("2.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2014-8155", "CVE-2015-0282", "CVE-2015-0294");
script_name(english:"Scientific Linux Security Update : gnutls on SL6.x i386/x86_64 (20150722)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"It was found that GnuTLS did not check activation and expiration dates
of CA certificates. This could cause an application using GnuTLS to
incorrectly accept a certificate as valid when its issuing CA is
already expired. (CVE-2014-8155)
It was found that GnuTLS did not verify whether a hashing algorithm
listed in a signature matched the hashing algorithm listed in the
certificate. An attacker could create a certificate that used a
different hashing algorithm than it claimed, possibly causing GnuTLS
to use an insecure, disallowed hashing algorithm during certificate
verification. (CVE-2015-0282)
It was discovered that GnuTLS did not check if all sections of X.509
certificates indicate the same signature algorithm. This flaw, in
combination with a different flaw, could possibly lead to a bypass of
the certificate signature check. (CVE-2015-0294)
The CVE-2014-8155 issue was discovered by Marcel Kolaja of Red Hat.
The CVE-2015-0282 and CVE-2015-0294 issues were discovered by Nikos
Mavrogiannopoulos of the Red Hat Security Technologies Team.
This update also fixes the following bug :
- Previously, under certain circumstances, the certtool
utility could generate X.509 certificates which
contained a negative modulus. Consequently, such
certificates could have interoperation problems with the
software using them. The bug has been fixed, and
certtool no longer generates X.509 certificates
containing a negative modulus."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1508&L=scientific-linux-errata&F=&S=&P=1412
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?b0ed9c7d"
);
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:N");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:gnutls");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:gnutls-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:gnutls-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:gnutls-guile");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:gnutls-utils");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/03/24");
script_set_attribute(attribute:"patch_publication_date", value:"2015/07/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/04");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL6", reference:"gnutls-2.8.5-18.el6")) flag++;
if (rpm_check(release:"SL6", reference:"gnutls-debuginfo-2.8.5-18.el6")) flag++;
if (rpm_check(release:"SL6", reference:"gnutls-devel-2.8.5-18.el6")) flag++;
if (rpm_check(release:"SL6", reference:"gnutls-guile-2.8.5-18.el6")) flag++;
if (rpm_check(release:"SL6", reference:"gnutls-utils-2.8.5-18.el6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "gnutls / gnutls-debuginfo / gnutls-devel / gnutls-guile / etc");
}
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
Percentile
75.5%