Executive Summary

Summary
Title OpenSSL vulnerabilities
Informations
NameUSN-3840-1First vendor Publication2018-12-06
VendorUbuntuLast vendor Modification2018-12-06
Severity (Vendor) N/ARevisionN/A

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score4.3Attack RangeNetwork
Cvss Impact Score2.9Attack ComplexityMedium
Cvss Expoit Score8.6AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in OpenSSL.

Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools - openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools

Details:

Samuel Weiser discovered that OpenSSL incorrectly handled DSA signing. An attacker could possibly use this issue to perform a timing side-channel attack and recover private DSA keys. (CVE-2018-0734)

Samuel Weiser discovered that OpenSSL incorrectly handled ECDSA signing. An attacker could possibly use this issue to perform a timing side-channel attack and recover private ECDSA keys. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-0735)

Billy Bob Brumley, Cesar Pereida Garcia, Sohaib ul Hassan, Nicola Tuveri, and Alejandro Cabrera Aldaya discovered that Simultaneous Multithreading (SMT) architectures are vulnerable to side-channel leakage. This issue is known as "PortSmash". An attacker could possibly use this issue to perform a timing side-channel attack and recover private keys. (CVE-2018-5407)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10:
libssl1.0.0 1.0.2n-1ubuntu6.1
libssl1.1 1.1.1-1ubuntu2.1

Ubuntu 18.04 LTS:
libssl1.0.0 1.0.2n-1ubuntu5.2
libssl1.1 1.1.0g-2ubuntu4.3

Ubuntu 16.04 LTS:
libssl1.0.0 1.0.2g-1ubuntu4.14

Ubuntu 14.04 LTS:
libssl1.0.0 1.0.1f-1ubuntu2.27

After a standard system update you need to reboot your computer to make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3840-1
CVE-2018-0734, CVE-2018-0735, CVE-2018-5407

Package Information:
https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1
https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu6.1
https://launchpad.net/ubuntu/+source/openssl/1.1.0g-2ubuntu4.3
https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.2
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.14
https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.27

Original Source

Url : http://www.ubuntu.com/usn/USN-3840-1

CWE : Common Weakness Enumeration

%idName
67 %CWE-320Key Management Errors
33 %CWE-200Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Application1
Application1
Application1
Application1
Application491
Application299
Hardware1
Os4
Os2
Os1

Nessus® Vulnerability Scanner

DateDescription
2019-01-18Name : The remote Fedora host is missing a security update.
File : fedora_2019-a8ffcff7ee.nasl - Type : ACT_GATHER_INFO
2019-01-17Name : The remote database server is affected by multiple vulnerabilities.
File : mysql_5_6_43.nasl - Type : ACT_GATHER_INFO
2019-01-17Name : The remote database server is affected by multiple vulnerabilities.
File : mysql_5_7_25.nasl - Type : ACT_GATHER_INFO
2019-01-17Name : The remote database server is affected by multiple vulnerabilities.
File : mysql_8_0_14.nasl - Type : ACT_GATHER_INFO
2019-01-02Name : Tenable Nessus running on the remote host is affected by multiple vulnerabili...
File : nessus_tns_2018_16.nasl - Type : ACT_GATHER_INFO
2019-01-02Name : Tenable Nessus running on the remote host is affected by multiple vulnerabili...
File : nessus_tns_2018_17.nasl - Type : ACT_GATHER_INFO
2018-12-28Name : The remote EulerOS host is missing a security update.
File : EulerOS_SA-2018-1434.nasl - Type : ACT_GATHER_INFO
2018-12-28Name : Node.js - JavaScript run-time environment is affected by multiple vulnerabili...
File : nodejs_2018_nov.nasl - Type : ACT_GATHER_INFO
2018-12-20Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4355.nasl - Type : ACT_GATHER_INFO
2018-12-10Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_2a86f45afc3c11e8a41400155d006b02.nasl - Type : ACT_GATHER_INFO
2018-12-01Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4348.nasl - Type : ACT_GATHER_INFO
2018-11-23Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2018-325-01.nasl - Type : ACT_GATHER_INFO
2018-11-23Name : The remote Debian host is missing a security update.
File : debian_DLA-1586.nasl - Type : ACT_GATHER_INFO
2018-11-13Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_6f170cf2e6b711e8a9a8b499baebfeaf.nasl - Type : ACT_GATHER_INFO
2018-10-30Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_238ae7dedba211e8b713b499baebfeaf.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
DateInformations
2019-01-29 21:21:25
  • Multiple Updates
2018-12-19 21:21:59
  • Multiple Updates
2018-12-07 00:18:52
  • First insertion