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CVE-2022-1671

Status Candidate

Overview

A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.

Related Files

Ubuntu Security Notice USN-5469-1
Posted Jun 8, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5469-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0168, CVE-2022-1048, CVE-2022-1158, CVE-2022-1195, CVE-2022-1198, CVE-2022-1199, CVE-2022-1204, CVE-2022-1205, CVE-2022-1263, CVE-2022-1353, CVE-2022-1516, CVE-2022-1651, CVE-2022-1671, CVE-2022-1966, CVE-2022-1972, CVE-2022-21499, CVE-2022-28356, CVE-2022-28388, CVE-2022-28389, CVE-2022-28390
SHA-256 | 4ce717877a9ad9825a852ffb1c677186dfde79c8f40631b1893230bba71c8954
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