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Red Hat Security Advisory

RHSA-2023:4378

kernel-rt security and bug fix update

Released 2023-08-01 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 5 records

Priority HIGH 69

A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00479 Published 2023-06-28 Fixed in 6.4 CWE-787
Priority MEDIUM 58

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PR_SET_SPECULATION_CTRL which disables the speculation feature as well as by using seccomp.

CVSS 3.1MEDIUM 5.6 Local Low privileges No interaction EPSS 0.01377 Published 2023-04-21 Partial fix · 6.3 CWE-1303