Security Fix(es) :
A flaw was found in the way OpenSSL encoded certain ASN.1 data structures. An attacker could use this flaw to create a specially crafted certificate which, when verified or re-encoded by OpenSSL, could cause it to crash, or execute arbitrary code using the permissions of the user running an application compiled against the OpenSSL library. (CVE-2016-2108)
Two integer overflow flaws, leading to buffer overflows, were found in the way the EVP_EncodeUpdate() and EVP_EncryptUpdate() functions of OpenSSL parsed very large amounts of input data. A remote attacker could use these flaws to crash an application using OpenSSL or, possibly, execute arbitrary code with the permissions of the user running that application. (CVE-2016-2105, CVE-2016-2106)
It was discovered that OpenSSL leaked timing information when decrypting TLS/SSL and DTLS protocol encrypted records when the connection used the AES CBC cipher suite and the server supported AES-NI. A remote attacker could possibly use this flaw to retrieve plain text from encrypted packets by using a TLS/SSL or DTLS server as a padding oracle. (CVE-2016-2107)
Several flaws were found in the way BIO_*printf functions were implemented in OpenSSL. Applications which passed large amounts of untrusted data through these functions could crash or potentially execute code with the permissions of the user running such an application. (CVE-2016-0799, CVE-2016-2842)
A denial of service flaw was found in the way OpenSSL parsed certain ASN.1-encoded data from BIO (OpenSSL’s I/O abstraction) inputs. An application using OpenSSL that accepts untrusted ASN.1 BIO input could be forced to allocate an excessive amount of data. (CVE-2016-2109)
#%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(91541);
script_version("2.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2016-0799", "CVE-2016-2105", "CVE-2016-2106", "CVE-2016-2107", "CVE-2016-2108", "CVE-2016-2109", "CVE-2016-2842");
script_name(english:"Scientific Linux Security Update : openssl on SL6.x i386/x86_64 (20160510)");
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:
"Security Fix(es) :
- A flaw was found in the way OpenSSL encoded certain
ASN.1 data structures. An attacker could use this flaw
to create a specially crafted certificate which, when
verified or re-encoded by OpenSSL, could cause it to
crash, or execute arbitrary code using the permissions
of the user running an application compiled against the
OpenSSL library. (CVE-2016-2108)
- Two integer overflow flaws, leading to buffer overflows,
were found in the way the EVP_EncodeUpdate() and
EVP_EncryptUpdate() functions of OpenSSL parsed very
large amounts of input data. A remote attacker could use
these flaws to crash an application using OpenSSL or,
possibly, execute arbitrary code with the permissions of
the user running that application. (CVE-2016-2105,
CVE-2016-2106)
- It was discovered that OpenSSL leaked timing information
when decrypting TLS/SSL and DTLS protocol encrypted
records when the connection used the AES CBC cipher
suite and the server supported AES-NI. A remote attacker
could possibly use this flaw to retrieve plain text from
encrypted packets by using a TLS/SSL or DTLS server as a
padding oracle. (CVE-2016-2107)
- Several flaws were found in the way BIO_*printf
functions were implemented in OpenSSL. Applications
which passed large amounts of untrusted data through
these functions could crash or potentially execute code
with the permissions of the user running such an
application. (CVE-2016-0799, CVE-2016-2842)
- A denial of service flaw was found in the way OpenSSL
parsed certain ASN.1-encoded data from BIO (OpenSSL's
I/O abstraction) inputs. An application using OpenSSL
that accepts untrusted ASN.1 BIO input could be forced
to allocate an excessive amount of data. (CVE-2016-2109)"
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1606&L=scientific-linux-errata&F=&S=&P=2153
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?52edfd08"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openssl-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openssl-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openssl-perl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openssl-static");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/03");
script_set_attribute(attribute:"patch_publication_date", value:"2016/05/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/09");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 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:"openssl-1.0.1e-48.el6_8.1")) flag++;
if (rpm_check(release:"SL6", reference:"openssl-debuginfo-1.0.1e-48.el6_8.1")) flag++;
if (rpm_check(release:"SL6", reference:"openssl-devel-1.0.1e-48.el6_8.1")) flag++;
if (rpm_check(release:"SL6", reference:"openssl-perl-1.0.1e-48.el6_8.1")) flag++;
if (rpm_check(release:"SL6", reference:"openssl-static-1.0.1e-48.el6_8.1")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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, "openssl / openssl-debuginfo / openssl-devel / openssl-perl / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | openssl | p-cpe:/a:fermilab:scientific_linux:openssl |
fermilab | scientific_linux | openssl-debuginfo | p-cpe:/a:fermilab:scientific_linux:openssl-debuginfo |
fermilab | scientific_linux | openssl-devel | p-cpe:/a:fermilab:scientific_linux:openssl-devel |
fermilab | scientific_linux | openssl-perl | p-cpe:/a:fermilab:scientific_linux:openssl-perl |
fermilab | scientific_linux | openssl-static | p-cpe:/a:fermilab:scientific_linux:openssl-static |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0799
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2105
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2106
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2107
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2108
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2109
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2842
www.nessus.org/u?52edfd08