drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in OpenSSL
Name: |
Mehrere Probleme in OpenSSL |
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ID: |
USN-3840-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 18.10 |
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Datum: |
Do, 6. Dezember 2018, 23:28 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0735
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0734
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-5407 |
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Applikationen: |
OpenSSL |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --WyEMGpnkllzjhTjZSNmOrP1zTcbYIcppz Content-Type: multipart/mixed; boundary="JYCmCox88Mp6bAcsnPWMZMnWKE1NUYwXK"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <94259e8f-648e-4cba-5040-bbaef9c406fe@canonical.com> Subject: [USN-3840-1] OpenSSL vulnerabilities
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========================================================================== Ubuntu Security Notice USN-3840-1 December 06, 2018
openssl, openssl1.0 vulnerabilities ==========================================================================
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
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