Patch Tuesday Just Broke Its Own Record, and Two Kernel Bugs Turned 15 in the Same Week

Short summary

Microsoft shipped its largest-ever Patch Tuesday with 570-622 CVEs including three zero-days, two actively exploited. Two long-lived Linux kernel vulnerabilities were also disclosed: Januscape, a 16-year-old KVM guest-to-host escape affecting Intel and AMD, and GhostLock, a 15-year-old real-time mutex bug. Kerberos RC4 support was permanently removed, which may break legacy service account authentication.

• •Microsoft's largest Patch Tuesday: 570-622 CVEs, 3 zero-days, 2 actively exploited
• •Januscape: 16-year-old KVM escape, first guest-to-host on both Intel and AMD
• •Kerberos RC4 permanently removed — audit service accounts before they fail

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