This update for xstream fixes the following issues:

- Upgrade to 1.4.16
- CVE-2021-21351: remote attacker to load and execute arbitrary code (bsc#1184796)
- CVE-2021-21349: SSRF can lead to a remote attacker to request data from internal resources (bsc#1184797)
- CVE-2021-21350: arbitrary code execution (bsc#1184380)
- CVE-2021-21348: remote attacker could cause denial of service by consuming maximum CPU time (bsc#1184374)
- CVE-2021-21347: remote attacker to load and execute arbitrary code from a remote host (bsc#1184378)
- CVE-2021-21344: remote attacker could load and execute arbitrary code from a remote host (bsc#1184375)
- CVE-2021-21342: server-side forgery (bsc#1184379)
- CVE-2021-21341: remote attacker could cause a denial of service by allocating 100% CPU time (bsc#1184377)
- CVE-2021-21346: remote attacker could load and execute arbitrary code (bsc#1184373)
- CVE-2021-21345: remote attacker with sufficient rights could execute commands (bsc#1184372)
- CVE-2021-21343: replace or inject objects, that result in the deletion of files on the local host (bsc#1184376)

This update was imported from the SUSE:SLE-15-SP2:Update update project.