5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.069 Low
EPSS
Percentile
93.9%
It was discovered that NSS leaked timing information when decrypting TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher suites were used. A remote attacker could possibly use this flaw to retrieve plain text from the encrypted packets by using a TLS/SSL or DTLS server as a padding oracle. (CVE-2013-1620)
An out-of-bounds memory read flaw was found in the way NSS decoded certain certificates. If an application using NSS decoded a malformed certificate, it could cause the application to crash. (CVE-2013-0791)
This update also fixes the following bugs :
A defect in the FreeBL library implementation of the Diffie-Hellman (DH) protocol previously caused Openswan to drop connections.
A memory leak in the nssutil_ReadSecmodDB() function has been fixed.
In addition, the nss package has been upgraded to upstream version 3.14.3, and the nspr package has been upgraded to upstream version 4.9.5. These updates provide a number of bug fixes and enhancements over the previous versions.
Note that while upstream NSS version 3.14 prevents the use of certificates that have an MD5 signature, this erratum includes a patch that allows such certificates by default. To prevent the use of certificates that have an MD5 signature, set the ‘NSS_HASH_ALG_SUPPORT’ environment variable to ‘-MD5’.
After installing this update, applications using NSS or NSPR must be restarted for this update to take effect.
#%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(69223);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2013-0791", "CVE-2013-1620");
script_name(english:"Scientific Linux Security Update : nss and nspr on SL5.x i386/x86_64 (20130805)");
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 discovered that NSS leaked timing information when decrypting
TLS/SSL and DTLS protocol encrypted records when CBC-mode cipher
suites were used. A remote attacker could possibly use this flaw to
retrieve plain text from the encrypted packets by using a TLS/SSL or
DTLS server as a padding oracle. (CVE-2013-1620)
An out-of-bounds memory read flaw was found in the way NSS decoded
certain certificates. If an application using NSS decoded a malformed
certificate, it could cause the application to crash. (CVE-2013-0791)
This update also fixes the following bugs :
- A defect in the FreeBL library implementation of the
Diffie-Hellman (DH) protocol previously caused Openswan
to drop connections.
- A memory leak in the nssutil_ReadSecmodDB() function has
been fixed.
In addition, the nss package has been upgraded to upstream version
3.14.3, and the nspr package has been upgraded to upstream version
4.9.5. These updates provide a number of bug fixes and enhancements
over the previous versions.
Note that while upstream NSS version 3.14 prevents the use of
certificates that have an MD5 signature, this erratum includes a patch
that allows such certificates by default. To prevent the use of
certificates that have an MD5 signature, set the
'NSS_HASH_ALG_SUPPORT' environment variable to '-MD5'.
After installing this update, applications using NSS or NSPR must be
restarted for this update to take effect."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1308&L=scientific-linux-errata&T=0&P=77
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?726b44ed"
);
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:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nspr");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nspr-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nspr-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nss");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nss-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nss-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nss-pkcs11-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:nss-tools");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2013/02/08");
script_set_attribute(attribute:"patch_publication_date", value:"2013/08/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2013/08/06");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2013-2021 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:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 5.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL5", reference:"nspr-4.9.5-1.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nspr-debuginfo-4.9.5-1.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nspr-devel-4.9.5-1.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nss-3.14.3-6.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nss-debuginfo-3.14.3-6.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nss-devel-3.14.3-6.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nss-pkcs11-devel-3.14.3-6.el5_9")) flag++;
if (rpm_check(release:"SL5", reference:"nss-tools-3.14.3-6.el5_9")) 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, "nspr / nspr-debuginfo / nspr-devel / nss / nss-debuginfo / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | nspr | p-cpe:/a:fermilab:scientific_linux:nspr |
fermilab | scientific_linux | nspr-debuginfo | p-cpe:/a:fermilab:scientific_linux:nspr-debuginfo |
fermilab | scientific_linux | nspr-devel | p-cpe:/a:fermilab:scientific_linux:nspr-devel |
fermilab | scientific_linux | nss | p-cpe:/a:fermilab:scientific_linux:nss |
fermilab | scientific_linux | nss-debuginfo | p-cpe:/a:fermilab:scientific_linux:nss-debuginfo |
fermilab | scientific_linux | nss-devel | p-cpe:/a:fermilab:scientific_linux:nss-devel |
fermilab | scientific_linux | nss-pkcs11-devel | p-cpe:/a:fermilab:scientific_linux:nss-pkcs11-devel |
fermilab | scientific_linux | nss-tools | p-cpe:/a:fermilab:scientific_linux:nss-tools |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |