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

  - Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a     memory-cache side-channel attack on ECDSA signatures     that can be mitigated through the use of blinding     during the signing process in the _gcry_ecc_ecdsa_sign     function in cipher/ecc-ecdsa.c, aka the Return Of the     Hidden Number Problem or ROHNP. To discover an ECDSA     key, the attacker needs access to either the local     machine or a different virtual machine on the same     physical host.i1/4^CVE-2018-0495i1/4%0

  - During key agreement in a TLS handshake using a DH(E)     based ciphersuite a malicious server can send a very     large prime value to the client. This will cause the     client to spend an unreasonably long period of time     generating a key for this prime resulting in a hang     until the client has finished. This could be exploited     in a Denial Of Service attack. Fixed in OpenSSL     1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL     1.0.2p-dev (Affected 1.0.2-1.0.2o).i1/4^CVE-2018-0732i1/4%0

  - Constructed ASN.1 types with a recursive definition     (such as can be found in PKCS7) could eventually exceed     the stack given malicious input with excessive     recursion. This could result in a Denial Of Service     attack. There are no such structures used within     SSL/TLS that come from untrusted sources so this is     considered safe. Fixed in OpenSSL 1.1.0h (Affected     1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected     1.0.2b-1.0.2n).i1/4^CVE-2018-0739i1/4%0

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.

From Red Hat Security Advisory 2018:3221 :

An update for openssl is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es) :

* openssl: ROHNP - Key Extraction Side Channel in Multiple Crypto Libraries (CVE-2018-0495)

* openssl: Malicious server can send large prime to client during DH(E) TLS handshake causing the client to hang (CVE-2018-0732)

* openssl: Handling of crafted recursive ASN.1 structures can cause a stack overflow and resulting denial of service (CVE-2018-0739)

* openssl: Malformed X.509 IPAdressFamily could cause OOB read (CVE-2017-3735)

* openssl: RSA key generation cache timing vulnerability in crypto/rsa/ rsa_gen.c allows attackers to recover private keys (CVE-2018-0737)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has nss packages installed that are affected by multiple vulnerabilities:

  - Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a     memory-cache side-channel attack on ECDSA signatures     that can be mitigated through the use of blinding during     the signing process in the _gcry_ecc_ecdsa_sign function     in cipher/ecc-ecdsa.c, aka the Return Of the Hidden     Number Problem or ROHNP. To discover an ECDSA key, the     attacker needs access to either the local machine or a     different virtual machine on the same physical host.
    (CVE-2018-0495)

  - A cached side channel attack during handshakes using RSA     encryption could allow for the decryption of encrypted     content. This is a variant of the Adaptive Chosen     Ciphertext attack (AKA Bleichenbacher attack) and     affects all NSS versions prior to NSS 3.41.
    (CVE-2018-12404)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the nss-softokn packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A cached side channel attack during handshakes using     RSA encryption could allow for the decryption of     encrypted content. This is a variant of the Adaptive     Chosen Ciphertext attack (AKA Bleichenbacher attack)     and affects all NSS versions prior to NSS     3.41.(CVE-2018-12404)

  - Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a     memory-cache side-channel attack on ECDSA signatures     that can be mitigated through the use of blinding     during the signing process in the _gcry_ecc_ecdsa_sign     function in cipher/ecc-ecdsa.c, aka the Return Of the     Hidden Number Problem or ROHNP. To discover an ECDSA     key, the attacker needs access to either the local     machine or a different virtual machine on the same     physical host.(CVE-2018-0495)

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.

Minor update to version 1.1.1a with bug fixes and low impact security fixes.

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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1267 advisory.

  - ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries (CVE-2018-0495)

  - nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate     (CVE-2019-11745)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for MozillaFirefox, mozilla-nss and mozilla-nspr fixes the following issues :

Issues fixed in MozillaFirefox :

Update to Firefox ESR 60.4 (bsc#1119105)

CVE-2018-17466: Fixed a buffer overflow and out-of-bounds read in ANGLE library with TextureStorage11

CVE-2018-18492: Fixed a use-after-free with select element

CVE-2018-18493: Fixed a buffer overflow in accelerated 2D canvas with Skia

CVE-2018-18494: Fixed a Same-origin policy violation using location attribute and performance.getEntries to steal cross-origin URLs

CVE-2018-18498: Fixed a integer overflow when calculating buffer sizes for images

CVE-2018-12405: Fixed a few memory safety bugs

Issues fixed in mozilla-nss: Update to NSS 3.40.1 (bsc#1119105)

CVE-2018-12404: Fixed a cache side-channel variant of the Bleichenbacher attack (bsc#1119069)

CVE-2018-12384: Fixed an issue in the SSL handshake. NSS responded to an SSLv2-compatible ClientHello with a ServerHello that had an all-zero random. (bsc#1106873)

CVE-2018-0495: Fixed a memory-cache side-channel attack with ECDSA signatures (bsc#1097410)

Fixed a decryption failure during FFDHE key exchange

Various security fixes in the ASN.1 code

Issues fixed in mozilla-nspr: Update mozilla-nspr to 4.20 (bsc#1119105)

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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1461 advisory.

  - ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries (CVE-2018-0495)

  - nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate     (CVE-2019-11745)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
123871	EulerOS Virtualization 2.5.3 : openssl (EulerOS-SA-2019-1185)	Nessus	Huawei Local Security Checks	4/9/2019	1/6/2021	medium
118777	Oracle Linux 7 : openssl (ELSA-2018-3221)	Nessus	Oracle Linux Local Security Checks	11/7/2018	5/31/2022	medium
132493	NewStart CGSL CORE 5.05 / MAIN 5.05 : nss Multiple Vulnerabilities (NS-SA-2019-0236)	Nessus	NewStart CGSL Local Security Checks	12/31/2019	4/2/2024	medium
137973	EulerOS Virtualization 3.0.6.0 : nss-softokn (EulerOS-SA-2020-1754)	Nessus	Huawei Local Security Checks	7/1/2020	3/5/2024	medium
121239	Fedora 29 : 1:openssl (2019-a8ffcff7ee)	Nessus	Fedora Local Security Checks	1/18/2019	2/24/2020	medium
135092	RHEL 7 : nss-softokn (RHSA-2020:1267)	Nessus	Red Hat Local Security Checks	4/1/2020	4/28/2024	high
119871	SUSE SLED12 / SLES12 Security Update : MozillaFirefox, mozilla-nspr / mozilla-nss (SUSE-SU-2018:4236-1)	Nessus	SuSE Local Security Checks	12/24/2018	1/13/2021	critical
135460	RHEL 7 : nss-softokn (RHSA-2020:1461)	Nessus	Red Hat Local Security Checks	4/14/2020	4/24/2024	high

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