drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Fehlerbehandlung in python-cryptography
Name: |
Mangelnde Fehlerbehandlung in python-cryptography |
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ID: |
USN-3138-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 16.10 |
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Datum: |
Mo, 28. November 2016, 23:43 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9243 |
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Applikationen: |
PyCA cryptography |
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Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --iQdgCKpWijh2Gmp24b7ItwvLplqDDkJCT Content-Type: multipart/mixed; boundary="ajOBftH2To0dUGaUrrN7TkGlN8cQP6rgJ" From: Marc Deslauriers <marc.deslauriers@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <69d566ea-fc76-8c02-d1f4-eba2a5ecc999@canonical.com> Subject: [USN-3138-1] python-cryptography vulnerability
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========================================================================== Ubuntu Security Notice USN-3138-1 November 28, 2016
python-cryptography vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10 - Ubuntu 16.04 LTS
Summary:
python-cryptography could generate incorrect keys.
Software Description: - python-cryptography: Cryptography Python library
Details:
Markus Döring discovered that python-cryptography incorrectly handled certain HKDF lengths. This could result in python-cryptography returning an empty string instead of the expected derived key.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.10: python-cryptography 1.5-2ubuntu0.1 python3-cryptography 1.5-2ubuntu0.1
Ubuntu 16.04 LTS: python-cryptography 1.2.3-1ubuntu0.1 python3-cryptography 1.2.3-1ubuntu0.1
In general, a standard system update will make all the necessary changes.
References: http://www.ubuntu.com/usn/usn-3138-1 CVE-2016-9243
Package Information: https://launchpad.net/ubuntu/+source/python-cryptography/1.5-2ubuntu0.1 https://launchpad.net/ubuntu/+source/python-cryptography/1.2.3-1ubuntu0.1
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