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 applicationsThere is no fixed version for Centos:7
kernel-rt-debug-devel
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel
package and not the kernel-rt-debug-devel
package as distributed by Centos
.
See How to fix?
for Centos:7
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
xen-netback: take a reference to the RX task thread
Do this in order to prevent the task from being freed if the thread returns (which can be triggered by the frontend) before the call to kthread_stop done as part of the backend tear down. Not taking the reference will lead to a use-after-free in that scenario. Such reference was taken before but dropped as part of the rework done in 2ac061ce97f4.
Reintroduce the reference taking and add a comment this time explaining why it's needed.
This is XSA-374 / CVE-2021-28691.