VULNERABILITY

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

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

Severity
4
CVSS
(AV:L/AC:H/Au:S/C:C/I:N/A:N)
Published
01/03/2019
Created
07/24/2020
Added
07/22/2020
Modified
01/23/2025

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(s)

  • oracle-linux-upgrade-kernel-uek

References

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