Security update for python-cryptography

Announcement ID: SUSE-SU-2021:0594-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-36242 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-36242 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected Products:
  • Basesystem Module 15-SP2
  • Python 2 Module 15-SP2
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1

An update that solves one vulnerability can now be installed.

Description:

This update for python-cryptography fixes the following issues:

  • CVE-2020-36242: Using the Fernet class to symmetrically encrypt multi gigabyte values could result in an integer overflow and buffer overflow (bsc#1182066).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • Basesystem Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-594=1
  • Python 2 Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Python2-15-SP2-2021-594=1

Package List:

  • Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • python-cryptography-debuginfo-2.8-3.6.1
    • python3-cryptography-2.8-3.6.1
    • python-cryptography-debugsource-2.8-3.6.1
    • python3-cryptography-debuginfo-2.8-3.6.1
  • Python 2 Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • python-cryptography-debuginfo-2.8-3.6.1
    • python2-cryptography-2.8-3.6.1
    • python2-cryptography-debuginfo-2.8-3.6.1
    • python-cryptography-debugsource-2.8-3.6.1

References: