|Related CVEs||CVE-2022-2585 CVE-2022-2586 CVE-2022-2588 CVE-2022-23816 CVE-2022-26373 CVE-2022-29900 CVE-2022-29901 CVE-2022-36879 CVE-2022-36946|
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
A use-after-free flaw in the implementation of POSIX CPU timers may result in denial of service or in local privilege escalation.
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.
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.
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 the Intel advisory
Johannes Wikner and Kaveh Razavi reported that for AMD/Hygon processors, mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
A list of affected AMD CPU types can be found at the AMD bulletin
Johannes Wikner and Kaveh Razavi reported that for Intel processors (Intel Core generation 6, 7 and 8), protections against speculative branch target injection attacks were insufficient in some circumstances, which may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.
More information can be found at the Intel advisory
A flaw was discovered in xfrm_expand_policies in the xfrm subsystem which can cause a reference count to be dropped twice.
Domingo Dirutigliano and Nicola Guerrera reported a memory corruption flaw in the Netfilter subsystem which may result in denial of service.
For Debian 9 stretch, these problems have been fixed in version 5.10.136-1~deb9u1.
We recommend that you upgrade your linux-5.10 packages.
Further information about Extended LTS security advisories can be found at: https://deb.freexian.com/extended-lts/