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
kernel6.12-debuginfo-common-x86_64
to version 0:6.12.35-55.103.amzn2023 or higher.
This issue was patched in ALAS2023-2025-1080
.
Note: Versions mentioned in the description apply only to the upstream kernel6.12-debuginfo-common-x86_64
package and not the kernel6.12-debuginfo-common-x86_64
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:
net_sched: ets: fix a race in ets_qdisc_change()
Gerrard Tai reported a race condition in ETS, whenever SFQ perturb timer fires at the wrong time.
The race is as follows:
CPU 0 CPU 1 [1]: lock root [2]: qdisc_tree_flush_backlog() [3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() | [4]: qdisc_put()
This can be abused to underflow a parent's qlen.
Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog() should fix the race, because all packets will be purged from the qdisc before releasing the lock.