An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically the backtrace function did not properly check the array bounds when storing the frame address resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

🗓️ 25 Sep 2020 07:00:00Reported by MicrosoftType

glibc on PowerPC trampolines has out-of-bounds write in backtrace; may cause denial of service or code execution.

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