Ubuntu Security Notice 2374-1 – Ben Hawkes reported some off by one errors for report descriptors in the Linux kernel’s HID stack. A physically proximate attacker could exploit these flaws to cause a denial of service (out-of-bounds write) via a specially crafted device. Several bounds check flaws allowing for buffer overflows were discovered in the Linux kernel’s Whiteheat USB serial driver. A physically proximate attacker could exploit these flaws to cause a denial of service (system crash) via a specially crafted device. Various other issues were also addressed.