Debian Bullseye DSA-5207-1 Critical: Kernel Escalation Risks

CVE-2022-2585

A use-after-free flaw in the implementation of POSIX CPU timers may
result in denial of service or in local privilege escalation.

CVE-2022-2586

A use-after-free in the Netfilter subsystem may result in local
privilege escalation for a user with the CAP_NET_ADMIN capability in
any user or network namespace.

CVE-2022-2588

Zhenpeng Lin discovered a use-after-free flaw in the cls_route
filter implementation which may result in local privilege escalation
for a user with the CAP_NET_ADMIN capability in any user or network
namespace.

CVE-2022-26373

It was discovered that on certain processors with Intel's Enhanced
Indirect Branch Restricted Speculation (eIBRS) capabilities there
are exceptions to the documented properties in some situations,
which may result in information disclosure.

Intel's explanation of the issue can be found at


CVE-2022-29900

Johannes Wikner and Kaveh Razavi reported that for AMD/Hygon
processors, mis-train...