QID 353132

a flaw was found in the jfs filesystem code.
This flaw allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges.
The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (
( CVE-2020-27815) a flaw was found in the linux kernels implementation of the linux scsi target host, where an authenticated attacker could write to any block on the exported scsi device backing store.
This flaw allows an authenticated attacker to send lio block requests to the linux system to overwrite data on the backing store.
The highest threat from this vulnerability is to integrity.
In addition, this flaw affects the tcmu-runner package, where the affected scsi command is called. (
( CVE-2020-28374) an issue was discovered in xen through 4.14.x.
Some oses (such as linux, freebsd, and netbsd) are processing watch events using a single thread.
If the events are received faster than the thread is able to handle, they will get queued.
As the queue is unbounded, a guest may be able to trigger an oom in the backend.
All systems with a freebsd, linux, or netbsd (any version) dom0 are vulnerable. (
( CVE-2020-29568) an issue was discovered in the linux kernel through 5.10.1, as used with xen through 4.14.x.
The linux kernel pv block backend expects the kernel thread handler to reset ring->xenblkd to null when stopped.
However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect.
As a consequence, the block backend may re-use a pointer after it was freed.
This only affects systems with a linux blkback. (

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.