: Incorrect Default Permissions vulnerability in libzypp of SUSE CaaS Platform 3.0, SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allowed local attackers to read a cookie store used by libzypp, exposing private cookies. This issue affects: SUSE CaaS Platform 3.0 libzypp versions prior to 16.21.2-27.68.1. SUSE Linux Enterprise Server 12 libzypp versions prior to 16.21.2-2.45.1. SUSE Linux Enterprise Server 15 17.19.0-3.34.1.

The decoupled download and installation steps in libzypp before 17.5.0 could lead to a corrupted RPM being left in the cache, where a later call would not display the corrupted RPM warning and allow installation, a problem caused by malicious warnings only displayed during download.

In libzypp before August 2018 GPG keys attached to YUM repositories were not correctly pinned, allowing malicious repository mirrors to silently downgrade to unsigned repositories with potential malicious content.

In libzypp before 20170803 it was possible to add unsigned YUM repositories without warning to the user that could lead to man in the middle or malicious servers to inject malicious RPM packages into a users system.

The RPM GPG key import and handling feature in libzypp 12.15.0 and earlier reports a different key fingerprint than the one used to sign a repository when multiple key blobs are used, which might allow remote attackers to trick users into believing that the repository was signed by a more-trustworthy key.