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Package: linux
CVE ID: CVE-2022-2585 CVE-2022-2586 CVE-2022-2588 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.
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
<https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/post-barrier-return-stack-buffer-predictions.html>
CVE-2022-29900
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
<https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037>
CVE-2022-29901
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
<https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-guidance/return-stack-buffer-underflow.html>
CVE-2022-36879
A flaw was discovered in xfrm_expand_policies in the xfrm subsystem
which can cause a reference count to be dropped twice.
CVE-2022-36946
Domingo Dirutigliano and Nicola Guerrera reported a memory
corruption flaw in the Netfilter subsystem which may result in
denial of service.
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