vulnerability

Oracle Linux: CVE-2019-7308: ELSA-2020-5755: Unbreakable Enterprise kernel security update (IMPORTANT)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:N)
Published
Jan 3, 2019
Added
Jul 22, 2020
Modified
Dec 3, 2025

Description

kernel/bpf/verifier.c in the Linux kernel before 4.20.6 performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.
A bypass was found for the Spectre v1 hardening in the eBPF engine of the Linux kernel. The code in the kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks.

Solution

oracle-linux-upgrade-kernel-uek
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.