drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Nettle
Name: |
Zwei Probleme in Nettle |
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ID: |
USN-4990-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10, Ubuntu 21.04 |
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Datum: |
Do, 17. Juni 2021, 21:53 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3580
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16869 |
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Applikationen: |
Nettle |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --tQFXwC1o1aa3B0jW1TowLlwgWbGSl0Ptv Content-Type: multipart/mixed; boundary="zYlz2SSCRdEspIqK1KcIPWuepvRkWtmSm"; protected-headers="v1" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> Message-ID: <33526c56-7312-9d64-1fbe-2c14151a6ddf@canonical.com> Subject: [USN-4990-1] Nettle vulnerabilities
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========================================================================== Ubuntu Security Notice USN-4990-1 June 17, 2021
nettle vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
Several security issues were fixed in Nettle.
Software Description: - nettle: low level cryptographic library
Details:
It was discovered that Nettle incorrectly handled RSA decryption. A remote attacker could possibly use this issue to cause Nettle to crash, resulting in a denial of service. (CVE-2021-3580)
It was discovered that Nettle incorrectly handled certain padding oracles. A remote attacker could possibly use this issue to perform a variant of the Bleichenbacher attack. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-16869)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 21.04: libnettle8 3.7-2.1ubuntu1.1
Ubuntu 20.10: libnettle8 3.6-2ubuntu0.2
Ubuntu 20.04 LTS: libnettle7 3.5.1+really3.5.1-2ubuntu0.2
Ubuntu 18.04 LTS: libnettle6 3.4.1-0ubuntu0.18.04.1
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-4990-1 CVE-2018-16869, CVE-2021-3580
Package Information: https://launchpad.net/ubuntu/+source/nettle/3.7-2.1ubuntu1.1 https://launchpad.net/ubuntu/+source/nettle/3.6-2ubuntu0.2 https://launchpad.net/ubuntu/+source/nettle/3.5.1+really3.5.1-2ubuntu0.2 https://launchpad.net/ubuntu/+source/nettle/3.4.1-0ubuntu0.18.04.1
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