2021-026-Triaging threat research, Jira vulns, Serious Sam vuln, Systemd vulns, and HiveNightmare

<p><a href= "https://www.mindtools.com/pages/article/newHTE_95.htm"><span style="font-weight: 400;"> https://www.mindtools.com/pages/article/newHTE_95.htm</span></a></p> <p><span style="font-weight: 400;"><a href= "https://www.infoq.com/news/2021/07/microsoft-linux-builder-mariner/"> https://www.infoq.com/news/2021/07/microsoft-linux-builder-mariner/</a></span></p> <p><a href= "https://www.productplan.com/glossary/action-priority-matrix/"><span style="font-weight: 400;"> https://www.productplan.com/glossary/action-priority-matrix/</span></a></p> <p> </p> <p><span style="font-weight: 400;">More PrintNightmare issues:</span><span style="font-weight: 400;"><br /></span> <a href="https://www.bleepingcomputer.com/news/microsoft/windows-10-july-security-updates-break-printing-on-some-systems/"> <span style= "font-weight: 400;">https://www.bleepingcomputer.com/news/microsoft/windows-10-july-security-updates-break-printing-on-some-systems/</span></a></p> <p><span style="font-weight: 400;">“</span><span style= "font-weight: 400;">"After installing updates released July 13, 2021 on domain controllers (DCs) in your environment, printers, scanners, and multifunction devices that are not compliant with section 3.2.1 of</span> <a href= "https://www.ietf.org/rfc/rfc4556.txt"><span style= "font-weight: 400;">RFC 4556 spec</span></a> <span style= "font-weight: 400;">might fail to print when using smart card (PIV) authentication," Microsoft</span> <a href= "https://docs.microsoft.com/en-us/windows/release-health/status-windows-10-21h1#1663msgdesc"> <span style="font-weight: 400;">explained</span></a><span style= "font-weight: 400;">.”</span></p> <p> </p> <p><a href= "https://www.crowdstrike.com/blog/shlayer-malvertising-campaigns-still-using-flash-update-disguise/"> <span style= "font-weight: 400;">https://www.crowdstrike.com/blog/shlayer-malvertising-campaigns-still-using-flash-update-disguise/</span></a></p> <p><span style="font-weight: 400;"> “Shlayer, discovered in 2018, is constantly maintained and also evolving. The graph be