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CVE-2018-5407: Infoleak

First published: Fri Nov 02 2018(Updated: )

A flaw was found in microprocessor execution engine sharing on SMT (e.g. Hyper-Threading) architectures. An attacker running a malicious process on the same core of the processor as the victim process, can extract certain secret information. The reporter is able to steal an OpenSSL (&lt;= 1.1.0h) P-384 private key from a TLS server using this new side-channel vector. It is a local attack in the sense that the malicious process must be running on the same physical core as the victim (an openSSL-powered TLS server in this case). But in general any application which branches on a secret value may be affected. References: <a href="https://seclists.org/oss-sec/2018/q4/123">https://seclists.org/oss-sec/2018/q4/123</a>

Credit: cret@cert.org cret@cert.org

Affected SoftwareAffected VersionHow to fix
IBM Security Verify Governance<=10.0
ubuntu/openssl<1.1.0
1.1.0
ubuntu/openssl<1.0.1
1.0.1
ubuntu/openssl<1.1.0<1.1.1
1.1.0
1.1.1
ubuntu/openssl<1.0.2
1.0.2
ubuntu/openssl1.0<1.0.2
1.0.2
ubuntu/openssl1.0<1.0.2
1.0.2
redhat/openssl<1.1.0
1.1.0
redhat/openssl<1.1.1
1.1.1
debian/openssl
1.1.1n-0+deb10u3
1.1.1n-0+deb10u6
1.1.1w-0+deb11u1
1.1.1n-0+deb11u5
3.0.11-1~deb12u2
3.1.5-1
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Nodejs Node.js<6.14.4
Nodejs Node.js>=8.0.0<8.11.4
Nodejs Node.js>=10.0.0<10.9.0
OpenSSL OpenSSL>=1.0.2<1.0.2q
OpenSSL OpenSSL>=1.1.0<1.1.0i
Tenable Nessus<8.1.1
Oracle API Gateway=11.1.2.4.0
Oracle Application Server=0.9.8
Oracle Application Server=1.0.0
Oracle Application Server=1.0.1
Oracle Enterprise Manager Base Platform=12.1.0.5.0
Oracle Enterprise Manager Base Platform=13.2.0.0.0
Oracle Enterprise Manager Base Platform=13.3.0.0.0
Oracle Enterprise Manager Ops Center=12.3.3
Oracle Mysql Enterprise Backup<=3.12.3
Oracle Mysql Enterprise Backup>=3.12.4<=4.1.2
Oracle PeopleSoft Enterprise PeopleTools=8.55
Oracle PeopleSoft Enterprise PeopleTools=8.56
Oracle PeopleSoft Enterprise PeopleTools=8.57
Oracle Primavera P6 Enterprise Project Portfolio Management>=17.7<=17.12
Oracle Primavera P6 Enterprise Project Portfolio Management=8.4
Oracle Primavera P6 Enterprise Project Portfolio Management=15.1
Oracle Primavera P6 Enterprise Project Portfolio Management=15.2
Oracle Primavera P6 Enterprise Project Portfolio Management=16.1
Oracle Primavera P6 Enterprise Project Portfolio Management=16.2
Oracle Primavera P6 Enterprise Project Portfolio Management=18.8
Oracle Tuxedo=12.1.1.0.0
Oracle VM VirtualBox<6.0.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server=7.6
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Eus=7.6
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Workstation=7.0

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2018-5407?

    CVE-2018-5407 is a vulnerability related to Simultaneous Multi-threading (SMT) in processors that can enable local users to exploit software vulnerabilities.

  • How does CVE-2018-5407 affect processors?

    CVE-2018-5407 affects multiple SMT/Hyper-Threading architectures and processors, allowing a local attacker to obtain sensitive information.

  • What is the severity of CVE-2018-5407?

    The severity of CVE-2018-5407 is medium, with a severity value of 5.1.

  • How can an attacker exploit CVE-2018-5407?

    An attacker can exploit CVE-2018-5407 by using the PortSmash side-channel attack to run a malicious process next to a legitimate one on Simultaneous Multithreading (SMT) architecture.

  • Which software is affected by CVE-2018-5407?

    The affected software includes OpenSSL, Node.js, Tenable Nessus, Oracle products, IBM Cloud Pak System, Redhat Enterprise Linux, and others. Please refer to the references for more details and specific versions.

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