This update for python3 provides the following fixes:
These security issues were fixed:
CVE-2018-1061: Prevent catastrophic backtracking in the difflib.ISLINEJUNK
method. An attacker could have used this flaw to cause denial of service
(bsc#1088004).
CVE-2018-1060: Prevent catastrophic backtracking in pop3lib's apop() method.
An attacker could have used this flaw to cause denial of service (bsc#1088009).
These non-security issues were fixed:
Sort files and directories when creating tarfile archives so that they are created in a
more predictable way. (bsc#1086001)