SUSE: 2018:3392-1 Moderate: python-cryptography Key Forging Risk
suse
October 24, 2018
An update that fixes one vulnerability is now available
Summary
This update for python-cryptography fixes the following issues: - CVE-2018-10903: The finalize_with_tag API did not enforce a minimum tag length. If a user did not validate the input length prior to passing it to finalize_with_tag an attacker could craft an invalid payload with a shortened tag (e.g. 1 byte) such that they would have a 1 in 256 chance of passing the MAC check. GCM tag forgeries could have caused key leakage (bsc#1101820). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Module for Basesystem 15: zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2430=1 Package List:
Topics Covered
References
#1101820
Cross- CVE-2018-10903
Affected Products:
SUSE Linux Enterprise Module for Basesystem 15
https://www.suse.com/security/cve/CVE-2018-10903.html
https://bugzilla.suse.com/1101820
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Announcement ID: SUSE-SU-2018:3392-1
Rating: moderate
Topics Covered
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