drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in OpenSSL
Name: |
Denial of Service in OpenSSL |
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ID: |
USN-4662-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10 |
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Datum: |
Di, 8. Dezember 2020, 20:46 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1971 |
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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) --E5NKQCbdLxEjVzxmLySWEEkgHWYBM2GmP Content-Type: multipart/mixed; boundary="que7Ur1OeN5I5XKl4gFbqzfhNLJWnpyab"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <9575fcc8-3ebe-0045-342f-c7058b79322d@canonical.com> Subject: [USN-4662-1] OpenSSL vulnerability
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========================================================================== Ubuntu Security Notice USN-4662-1 December 08, 2020
openssl, openssl1.0 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
OpenSSL could be made to crash if it processed specially crafted input.
Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools - openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
Details:
David Benjamin discovered that OpenSSL incorrectly handled comparing certificates containing a EDIPartyName name type. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: libssl1.1 1.1.1f-1ubuntu4.1
Ubuntu 20.04 LTS: libssl1.1 1.1.1f-1ubuntu2.1
Ubuntu 18.04 LTS: libssl1.0.0 1.0.2n-1ubuntu5.5 libssl1.1 1.1.1-1ubuntu2.1~18.04.7
Ubuntu 16.04 LTS: libssl1.0.0 1.0.2g-1ubuntu4.18
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://usn.ubuntu.com/4662-1 CVE-2020-1971
Package Information: https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu4.1 https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.1 https://launchpad.net/ubuntu/+source/openssl/1.1.1-1ubuntu2.1~18.04.7 https://launchpad.net/ubuntu/+source/openssl1.0/1.0.2n-1ubuntu5.5 https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.18
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