It lists a number of network-equipment vendors, PC and server manufacturers, mobile vendors, and operating-system makers that may be affected but notes that it hasn't confirmed whether any of them actually are. But, given the widespread use of Linux, the bug could affect every vendor from Amazon and Apple through to Ubuntu and ZyXEL. A remote attacker could cause a DoS by sending specially modified packets within ongoing TCP sessions. But sustaining the DoS condition would mean an attacker needs to have continuous two-way TCP sessions to a reachable and open port. The bug, dubbed "SegmentSmack" by Red Hat, has "no effective workaround/mitigation besides a fixed kernel."
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