The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade Amazon-Linux:2023
perf
to version 0:6.1.56-82.125.amzn2023 or higher.
This issue was patched in ALAS2023-2023-385
.
Note: Versions mentioned in the description apply only to the upstream perf
package and not the perf
package as distributed by Amazon-Linux
.
See How to fix?
for Amazon-Linux:2023
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range().
With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic.
Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.