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    Azeria (azeria@mastodon.social)'s status on Wednesday, 13-Sep-2023 09:26:14 JSTAzeriaAzeria

    Time for an Arm-twist! CVE-2023-4039

    Tom Hebb (Meta red team) and I discovered an 0day in GCC (for AArch64 targets) during my Arm exploitation training.

    It renders stack canaries against overflows of dynamically-sized variables useless.

    https://developer.arm.com/Arm%20Security%20Center/GCC%20Stack%20Protector%20Vulnerability%20AArch64

    In conversationWednesday, 13-Sep-2023 09:26:14 JST from mastodon.socialpermalink

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      GCC Stack Protector Vulnerability AArch64
      A potential security issue in the stack-protector feature in GCC when targeting AArch64. Arm has published fixes to the GCC open-source project.
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