• Ubuntu Security Notice USN-5703-1

    From Security Bot@2:250/1 to All on Wed Nov 16 00:22:10 2022


    Ubuntu Security Notice USN-5703-1

    Ubuntu Security Notice 5703-1 - Selim Enes Karaduman discovered that a
    race condition existed in the General notification queue implementation of
    the Linux kernel, leading to a use-after-free vulnerability. A local
    attacker could use this to cause a denial of service or possibly execute arbitrary code. Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani
    Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors
    with Enhanced Indirect Branch Restricted Speculation did not properly
    handle RET instructions after a VM exits. A local attacker could
    potentially use this to expose sensitive information.

    https://packetstormsecurity.com/files/169539/USN-5703-1.txt

    Thu, 27 Oct 2022 13:04:56 GMT
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