According to the versions of the openssl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An integer underflow leading to an out of bounds read     flaw was found in OpenSSL. A remote attacker could     possibly use this flaw to crash a 32-bit TLS/SSL server     or client using OpenSSL if it used the RC4-MD5 cipher     suite. (CVE-2017-3731)

  - A denial of service flaw was found in the way the     TLS/SSL protocol defined processing of ALERT packets     during a connection handshake. A remote attacker could     use this flaw to make a TLS/SSL server consume an     excessive amount of CPU and fail to accept connections     form other clients. (CVE-2016-8610)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A denial of service flaw was found in the way the TLS/SSL protocol defined

processing of ALERT packets during a connection handshake. A remote attacker

could use this flaw to make a TLS/SSL server consume an excessive amount of CPU

and fail to accept connections form other clients. (CVE-2016-8610)

Multiple flaws were found in the way gnutls processed OpenPGP certificates. An

attacker could create specially crafted OpenPGP certificates which, when parsed

by gnutls, would cause it to crash. (CVE-2017-5335 , CVE-2017-5336 ,

CVE-2017-5337)

This update for gnutls fixes the following issues :

  - Malformed asn1 definitions could cause a segmentation     fault in the asn1 definition parser (bsc#961491).

  - CVE-2016-8610: Remote denial of service in SSL alert     handling (bsc#1005879).

  - CVE-2017-5335: Decoding a specially crafted OpenPGP     certificate could have lead to heap and stack overflows     (bsc#1018832).

  - CVE-2017-5336: Decoding a specially crafted OpenPGP     certificate could have lead to heap and stack overflows     (bsc#1018832).

  - CVE-2017-5337: Decoding a specially crafted OpenPGP     certificate could have lead to heap and stack overflows     (bsc#1018832).

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.

Several vulnerabilities were discovered in OpenSSL :

CVE-2016-7056

A local timing attack was discovered against ECDSA P-256.

CVE-2016-8610

It was discovered that no limit was imposed on alert packets during an SSL handshake.

CVE-2017-3731

Robert Swiecki discovered that the RC4-MD5 cipher when running on 32 bit systems could be forced into an out-of-bounds read, resulting in denial of service.

For Debian 7 'Wheezy', these problems have been fixed in version 1.0.1t-1+deb7u2.

We recommend that you upgrade your openssl packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for gnutls fixes the following security issues :

  - GnuTLS could have crashed when processing maliciously     crafted OpenPGP certificates (GNUTLS-SA-2017-2,     bsc#1018832, CVE-2017-5335, CVE-2017-5337,     CVE-2017-5336)

  - GnuTLS could have falsely accepted certificates when     using OCSP (GNUTLS-SA-2016-3, bsc#999646, CVE-2016-7444)

  - GnuTLS could have suffered from 100% CPU load DoS     attacks by using SSL alert packets during the handshake     (bsc#1005879, CVE-2016-8610)

This update was imported from the SUSE:SLE-12:Update update project.

Minor upstream release fixing CVE-2016-8610, CVE-2017-3731, CVE-2017-3732.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
99874	EulerOS 2.0 SP1 : openssl (EulerOS-SA-2017-1029)	Nessus	Huawei Local Security Checks	5/1/2017	12/22/2025	high
99419	Amazon Linux AMI : gnutls (ALAS-2017-815)	Nessus	Amazon Linux Local Security Checks	4/18/2017	12/25/2025	critical
96870	SUSE SLES11 Security Update : gnutls (SUSE-SU-2017:0304-1)	Nessus	SuSE Local Security Checks	1/30/2017	1/2/2026	critical
96931	Debian DLA-814-1 : openssl security update	Nessus	Debian Local Security Checks	2/2/2017	1/2/2026	medium
97004	openSUSE Security Update : gnutls (openSUSE-2017-207)	Nessus	SuSE Local Security Checks	2/6/2017	1/1/2026	critical
97180	Fedora 24 : 1:openssl (2017-e853b4144f)	Nessus	Fedora Local Security Checks	2/15/2017	1/1/2026	medium

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