5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.946 High
EPSS
Percentile
99.3%
This update for openssl fixes the following issues :
OpenSSL Security Advisory [07 Dec 2017]
CVE-2017-3737: OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an 'error state' mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into the error state and would immediately fail if you attempted to continue the handshake. This works as designed for the explicit handshake functions (SSL_do_handshake(), SSL_accept() and SSL_connect()), however due to a bug it does not work correctly if SSL_read() or SSL_write() is called directly. In that scenario, if the handshake fails then a fatal error will be returned in the initial function call. If SSL_read()/SSL_write() is subsequently called by the application for the same SSL object then it will succeed and the data is passed without being decrypted/encrypted directly from the SSL/TLS record layer. In order to exploit this issue an application bug would have to be present that resulted in a call to SSL_read()/SSL_write() being issued after having already received a fatal error. OpenSSL version 1.0.2b-1.0.2m are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is not affected. (bsc#1071905)
CVE-2017-3738: There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely.
Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. (bsc#1071906)
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2017:3343-1.
# The text itself is copyright (C) SUSE.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(105353);
script_version("3.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2015-3193", "CVE-2016-0701", "CVE-2017-3732", "CVE-2017-3736", "CVE-2017-3737", "CVE-2017-3738");
script_name(english:"SUSE SLED12 / SLES12 Security Update : openssl (SUSE-SU-2017:3343-1)");
script_summary(english:"Checks rpm output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote SUSE host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"This update for openssl fixes the following issues :
- OpenSSL Security Advisory [07 Dec 2017]
- CVE-2017-3737: OpenSSL 1.0.2 (starting from version
1.0.2b) introduced an \'error state\' mechanism. The
intent was that if a fatal error occurred during a
handshake then OpenSSL would move into the error state
and would immediately fail if you attempted to continue
the handshake. This works as designed for the explicit
handshake functions (SSL_do_handshake(), SSL_accept()
and SSL_connect()), however due to a bug it does not
work correctly if SSL_read() or SSL_write() is called
directly. In that scenario, if the handshake fails then
a fatal error will be returned in the initial function
call. If SSL_read()/SSL_write() is subsequently called
by the application for the same SSL object then it will
succeed and the data is passed without being
decrypted/encrypted directly from the SSL/TLS record
layer. In order to exploit this issue an application bug
would have to be present that resulted in a call to
SSL_read()/SSL_write() being issued after having already
received a fatal error. OpenSSL version 1.0.2b-1.0.2m
are affected. Fixed in OpenSSL 1.0.2n. OpenSSL 1.1.0 is
not affected. (bsc#1071905)
- CVE-2017-3738: There is an overflow bug in the AVX2
Montgomery multiplication procedure used in
exponentiation with 1024-bit moduli. No EC algorithms
are affected. Analysis suggests that attacks against RSA
and DSA as a result of this defect would be very
difficult to perform and are not believed likely.
Attacks against DH1024 are considered just feasible,
because most of the work necessary to deduce information
about a private key may be performed offline. The amount
of resources required for such an attack would be
significant. However, for an attack on TLS to be
meaningful, the server would have to share the DH1024
private key among multiple clients, which is no longer
an option since CVE-2016-0701. This only affects
processors that support the AVX2 but not ADX extensions
like Intel Haswell (4th generation). Note: The impact
from this issue is similar to CVE-2017-3736,
CVE-2017-3732 and CVE-2015-3193. (bsc#1071906)
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1071905"
);
script_set_attribute(
attribute:"see_also",
value:"https://bugzilla.suse.com/show_bug.cgi?id=1071906"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-3737/"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.suse.com/security/cve/CVE-2017-3738/"
);
# https://www.suse.com/support/update/announcement/2017/suse-su-20173343-1/
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?6ecfb0bf"
);
script_set_attribute(
attribute:"solution",
value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2017-2097=1
SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t
patch SUSE-SLE-SDK-12-SP2-2017-2097=1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t
patch SUSE-SLE-RPI-12-SP2-2017-2097=1
SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2017-2097=1
SUSE Linux Enterprise Server 12-SP2:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2017-2097=1
SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2017-2097=1
SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP2-2017-2097=1
SUSE Container as a Service Platform ALL:zypper in -t patch
SUSE-CAASP-ALL-2017-2097=1
OpenStack Cloud Magnum Orchestration 7:zypper in -t patch
SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2017-2097=1
To bring your system up-to-date, use 'zypper patch'."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:openssl-debugsource");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/12/06");
script_set_attribute(attribute:"patch_publication_date", value:"2017/12/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/18");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"SuSE Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2/3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(2|3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP2/3", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl-devel-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-hmac-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"openssl-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"openssl-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"openssl-debugsource-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-debuginfo-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"libopenssl1_0_0-hmac-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl-devel-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-hmac-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"openssl-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"openssl-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"openssl-debugsource-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-debuginfo-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"libopenssl1_0_0-hmac-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libopenssl-devel-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libopenssl1_0_0-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libopenssl1_0_0-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libopenssl1_0_0-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"libopenssl1_0_0-debuginfo-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"openssl-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"openssl-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"openssl-debugsource-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libopenssl-devel-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libopenssl1_0_0-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libopenssl1_0_0-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libopenssl1_0_0-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"libopenssl1_0_0-debuginfo-32bit-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"openssl-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"openssl-debuginfo-1.0.2j-60.20.2")) flag++;
if (rpm_check(release:"SLED12", sp:"2", cpu:"x86_64", reference:"openssl-debugsource-1.0.2j-60.20.2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openssl");
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | libopenssl-devel | p-cpe:/a:novell:suse_linux:libopenssl-devel |
novell | suse_linux | libopenssl1_0_0 | p-cpe:/a:novell:suse_linux:libopenssl1_0_0 |
novell | suse_linux | libopenssl1_0_0-debuginfo | p-cpe:/a:novell:suse_linux:libopenssl1_0_0-debuginfo |
novell | suse_linux | libopenssl1_0_0-hmac | p-cpe:/a:novell:suse_linux:libopenssl1_0_0-hmac |
novell | suse_linux | openssl | p-cpe:/a:novell:suse_linux:openssl |
novell | suse_linux | openssl-debuginfo | p-cpe:/a:novell:suse_linux:openssl-debuginfo |
novell | suse_linux | openssl-debugsource | p-cpe:/a:novell:suse_linux:openssl-debugsource |
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3193
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0701
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3732
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3736
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3737
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3738
www.nessus.org/u?6ecfb0bf
bugzilla.suse.com/show_bug.cgi?id=1071905
bugzilla.suse.com/show_bug.cgi?id=1071906
www.suse.com/security/cve/CVE-2017-3737/
www.suse.com/security/cve/CVE-2017-3738/
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.946 High
EPSS
Percentile
99.3%