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 Ubuntu:20.04
qemu
to version 1:4.2-3ubuntu6.28 or higher.
Note: Versions mentioned in the description apply only to the upstream qemu
package and not the qemu
package as distributed by Ubuntu
.
See How to fix?
for Ubuntu:20.04
relevant fixed versions and status.
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.